157561232 has 10 divisors (see below), whose sum is σ = 305274918. Its totient is φ = 78780608.

The previous prime is 157561213. The next prime is 157561267. The reversal of 157561232 is 232165751.

It can be written as a sum of positive squares in only one way, i.e., 145057936 + 12503296 = 12044^2 + 3536^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4923773 + ... + 4923804.

Almost surely, 2^157561232 is an apocalyptic number.

It is an amenable number.

157561232 is a deficient number, since it is larger than the sum of its proper divisors (147713686).

157561232 is an equidigital number, since it uses as much as digits as its factorization.

157561232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9847585 (or 9847579 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 157561232 is about 12552.3397022228. The cubic root of 157561232 is about 540.1111248213. Note that the first 4 decimals are identical.

The spelling of 157561232 in words is "one hundred fifty-seven million, five hundred sixty-one thousand, two hundred thirty-two".