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Other polynomial numbers |
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- Hilbert
- Idoneal
- Leyland
- Loeschian
- Lucky numbers of Euler
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- Fibonacci
- Jacobsthal
- Leonardo
- Lucas
- Padovan
- Pell
- Perrin
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Possessing a specific set of other numbers |
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- Congruent
- Knödel
- Riesel
- Sierpiński
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Expressible via specific sums |
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- Nonhypotenuse
- Polite
- Practical
- Primary pseudoperfect
- Ulam
- Wolstenholme
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Figurate numbers |
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2-dimensional | centered |
- Centered triangular
- Centered square
- Centered pentagonal
- Centered hexagonal
- Centered heptagonal
- Centered octagonal
- Centered nonagonal
- Centered decagonal
- Star
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non-centered |
- Triangular
- Square
- Square triangular
- Pentagonal
- Hexagonal
- Heptagonal
- Octagonal
- Nonagonal
- Decagonal
- Dodecagonal
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3-dimensional | centered |
- Centered tetrahedral
- Centered cube
- Centered octahedral
- Centered dodecahedral
- Centered icosahedral
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non-centered |
- Tetrahedral
- Cubic
- Octahedral
- Dodecahedral
- Icosahedral
- Stella octangula
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pyramidal | |
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4-dimensional | non-centered |
- Pentatope
- Squared triangular
- Tesseractic
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Combinatorial numbers |
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- Bell
- Cake
- Catalan
- Dedekind
- Delannoy
- Euler
- Eulerian
- Fuss–Catalan
- Lah
- Lazy caterer's sequence
- Lobb
- Motzkin
- Narayana
- Ordered Bell
- Schröder
- Schröder–Hipparchus
- Stirling first
- Stirling second
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- Wieferich
- Wall–Sun–Sun
- Wolstenholme prime
- Wilson
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Pseudoprimes |
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- Carmichael number
- Catalan pseudoprime
- Elliptic pseudoprime
- Euler pseudoprime
- Euler–Jacobi pseudoprime
- Fermat pseudoprime
- Frobenius pseudoprime
- Lucas pseudoprime
- Lucas–Carmichael number
- Somer–Lucas pseudoprime
- Strong pseudoprime
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Arithmetic functions and dynamics |
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Divisor functions | |
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Prime omega functions | |
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Euler's totient function |
- Highly cototient
- Highly totient
- Noncototient
- Nontotient
- Perfect totient
- Sparsely totient
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Aliquot sequences |
- Amicable
- Perfect
- Sociable
- Untouchable
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Primorial | |
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- Blum
- Cyclic
- Erdős–Nicolas
- Erdős–Woods
- Friendly
- Giuga
- Harmonic divisor
- Lucas–Carmichael
- Pronic
- Regular
- Rough
- Smooth
- Sphenic
- Størmer
- Super-Poulet
- Zeisel
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Arithmetic functions and dynamics | Digit sum |
- Digit sum
- Digital root
- Self
- Sum-product
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Digit product |
- Multiplicative digital root
- Sum-product
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Coding-related | |
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Other |
- Dudeney
- Factorion
- Kaprekar
- Kaprekar's constant
- Keith
- Lychrel
- Narcissistic
- Perfect digit-to-digit invariant
- Perfect digital invariant
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P-adic numbers-related | |
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Digit-composition related |
- Palindromic
- Pandigital
- Repdigit
- Repunit
- Self-descriptive
- Smarandache–Wellin
- Strictly non-palindromic
- Undulating
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Digit-permutation related |
- Cyclic
- Digit-reassembly
- Parasitic
- Primeval
- Transposable
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Divisor-related |
- Equidigital
- Extravagant
- Frugal
- Harshad
- Polydivisible
- Smith
- Vampire
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Other | |
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- Pancake number
- Sorting number
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