150 (one hundred [and] fifty) is the natural number following 149 and preceding 151.

In mathematics

• 150 is the sum of eight consecutive primes (7 + 11 + 13 + 17 + 19 + 23 + 29 + 31). Given 150, the Mertens function returns 0.^[1]
• 150 is conjectured to be the only minimal difference greater than 1 of any increasing arithmetic progression of n primes (in this case, n = 7) that is not a primorial (a product of the first m primes).^[2]
• The sum of Euler's totient function φ(x) over the first twenty-two integers is 150.
• 150 is a Harshad number and an abundant number.
• 150 degrees is the measure of the internal angle of a regular dodecagon.

In the Bible

• The last numbered Psalm in the Bible, Psalm 150, considered the one most often set to music.
• The number of sons of Ulam, who were combat archers, in the Census of the men of Israel upon return from exile (I Chronicles 8:40)
• In the Book of Genesis, the number of days the waters from the Great Flood persisted on the Earth before subsiding.

Manuscripts

• Uncial 0150
• Minuscule 150
• Lectionary 150

In sports

• In Round 20 of the 2011 AFL season, Geelong inflicted the worst ever defeat on the Gold Coast Suns by 150 points.

In other fields

150 is also:

• The number of degrees in the quincunx astrological aspect explored by Johannes Kepler.
• The approximate value for Dunbar's number, a theoretical value with implications in sociology and anthropology
• The total number of Power Stars in Super Mario 64 DS for the Nintendo DS.

The total number of dragon eggs in Spyro: Year of the Dragon.