150951978 has 32 divisors (see below), whose sum is σ = 336441600. Its totient is φ = 50168448.

The previous prime is 150951947. The next prime is 150952001. The reversal of 150951978 is 879159051.

150951978 is a `hidden beast` number, since 1 + 509 + 51 + 97 + 8 = 666.

It is a super-3 number, since 3×150951978³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15103 + ... + 23021.

It is an arithmetic number, because the mean of its divisors is an integer number (10513800).

Almost surely, 2^150951978 is an apocalyptic number.

150951978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

150951978 is an abundant number, since it is smaller than the sum of its proper divisors (185489622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

150951978 is a wasteful number, since it uses less digits than its factorization.

150951978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283 (or 8277 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 150951978 is about 12286.2515845965. The cubic root of 150951978 is about 532.4509456895.

The spelling of 150951978 in words is "one hundred fifty million, nine hundred fifty-one thousand, nine hundred seventy-eight".