157934985 has 32 divisors (see below), whose sum is σ = 272979840. Its totient is φ = 77511168.

The previous prime is 157934971. The next prime is 157935007. The reversal of 157934985 is 589439751.

157934985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157934985 - 2⁶ = 157934921 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, 72837 + ... + 74973.

It is an arithmetic number, because the mean of its divisors is an integer number (8530620).

Almost surely, 2^157934985 is an apocalyptic number.

157934985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157934985 is a deficient number, since it is larger than the sum of its proper divisors (115044855).

157934985 is a wasteful number, since it uses less digits than its factorization.

157934985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537.

The product of its digits is 1360800, while the sum is 51.

The square root of 157934985 is about 12567.2186660374. The cubic root of 157934985 is about 540.5378557345.

The spelling of 157934985 in words is "one hundred fifty-seven million, nine hundred thirty-four thousand, nine hundred eighty-five".