150397857 has 32 divisors (see below), whose sum is σ = 231552000. Its totient is φ = 96364800.

The previous prime is 150397853. The next prime is 150397913. The reversal of 150397857 is 758793051.

150397857 is a `hidden beast` number, since 1 + 503 + 97 + 8 + 57 = 666.

It is not a de Polignac number, because 150397857 - 2² = 150397853 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (150397853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313744 + ... + 314222.

It is an arithmetic number, because the mean of its divisors is an integer number (7236000).

Almost surely, 2^150397857 is an apocalyptic number.

It is an amenable number.

150397857 is a deficient number, since it is larger than the sum of its proper divisors (81154143).

150397857 is a wasteful number, since it uses less digits than its factorization.

150397857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The square root of 150397857 is about 12263.6804019022. The cubic root of 150397857 is about 531.7986322621.

The spelling of 150397857 in words is "one hundred fifty million, three hundred ninety-seven thousand, eight hundred fifty-seven".