157681296 has 40 divisors (see below), whose sum is σ = 452604960. Its totient is φ = 52560288.

The previous prime is 157681291. The next prime is 157681313. The reversal of 157681296 is 692186751.

It is a super-2 number, since 2×157681296² = 49726782216479232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157681291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182070 + ... + 182933.

It is an arithmetic number, because the mean of its divisors is an integer number (11315124).

Almost surely, 2^157681296 is an apocalyptic number.

157681296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

157681296 is an abundant number, since it is smaller than the sum of its proper divisors (294923664).

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

157681296 is a wasteful number, since it uses less digits than its factorization.

157681296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365020 (or 365008 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 157681296 is about 12557.1213261639. The cubic root of 157681296 is about 540.2482808898.

The spelling of 157681296 in words is "one hundred fifty-seven million, six hundred eighty-one thousand, two hundred ninety-six".