157131532 has 6 divisors (see below), whose sum is σ = 274980188. Its totient is φ = 78565764.

The previous prime is 157131523. The next prime is 157131581. The reversal of 157131532 is 235131751.

157131532 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

157131532 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 157131532.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19641438 + ... + 19641445.

Almost surely, 2^157131532 is an apocalyptic number.

It is an amenable number.

157131532 is a deficient number, since it is larger than the sum of its proper divisors (117848656).

157131532 is a wasteful number, since it uses less digits than its factorization.

157131532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39282887 (or 39282885 counting only the distinct ones).

The product of its digits is 3150, while the sum is 28.

The square root of 157131532 is about 12535.2116854882. The cubic root of 157131532 is about 539.6196819104.

The spelling of 157131532 in words is "one hundred fifty-seven million, one hundred thirty-one thousand, five hundred thirty-two".