157532913 has 12 divisors (see below), whose sum is σ = 227675188. Its totient is φ = 104963040.

The previous prime is 157532887. The next prime is 157532929. The reversal of 157532913 is 319235751.

157532913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 131400369 + 26132544 = 11463^2 + 5112^2 .

It is not a de Polignac number, because 157532913 - 2⁸ = 157532657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157532953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17331 + ... + 24807.

Almost surely, 2^157532913 is an apocalyptic number.

It is an amenable number.

157532913 is a deficient number, since it is larger than the sum of its proper divisors (70142275).

157532913 is a wasteful number, since it uses less digits than its factorization.

157532913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9824 (or 9821 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 157532913 is about 12551.2116148203. The cubic root of 157532913 is about 540.0787642311.

The spelling of 157532913 in words is "one hundred fifty-seven million, five hundred thirty-two thousand, nine hundred thirteen".