157040656 has 10 divisors (see below), whose sum is σ = 304266302. Its totient is φ = 78520320.

The previous prime is 157040647. The next prime is 157040659. The reversal of 157040656 is 656040751.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101687056 + 55353600 = 10084^2 + 7440^2 .

It is not an unprimeable number, because it can be changed into a prime (157040659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4907505 + ... + 4907536.

Almost surely, 2^157040656 is an apocalyptic number.

157040656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

157040656 is a deficient number, since it is larger than the sum of its proper divisors (147225646).

157040656 is an equidigital number, since it uses as much as digits as its factorization.

157040656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815049 (or 9815043 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 157040656 is about 12531.5863321449. The cubic root of 157040656 is about 539.5156333376.

The spelling of 157040656 in words is "one hundred fifty-seven million, forty thousand, six hundred fifty-six".