157904915 has 32 divisors (see below), whose sum is σ = 230307840. Its totient is φ = 101520000.

The previous prime is 157904909. The next prime is 157904933. The reversal of 157904915 is 519409751.

It is not a de Polignac number, because 157904915 - 2¹⁶ = 157839379 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65990 + ... + 68340.

It is an arithmetic number, because the mean of its divisors is an integer number (7197120).

Almost surely, 2^157904915 is an apocalyptic number.

157904915 is a deficient number, since it is larger than the sum of its proper divisors (72402925).

157904915 is a wasteful number, since it uses less digits than its factorization.

157904915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 157904915 is about 12566.0222425396. The cubic root of 157904915 is about 540.5035483580.

The spelling of 157904915 in words is "one hundred fifty-seven million, nine hundred four thousand, nine hundred fifteen".