130857724 has 12 divisors (see below), whose sum is σ = 229081104. Its totient is φ = 65405984.

The previous prime is 130857703. The next prime is 130857737. The reversal of 130857724 is 427758031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19737 + ... + 25519.

It is an arithmetic number, because the mean of its divisors is an integer number (19090092).

Almost surely, 2^130857724 is an apocalyptic number.

It is an amenable number.

130857724 is a deficient number, since it is larger than the sum of its proper divisors (98223380).

130857724 is a wasteful number, since it uses less digits than its factorization.

130857724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11444 (or 11442 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 130857724 is about 11439.3060978365. The cubic root of 130857724 is about 507.6913774252.

The spelling of 130857724 in words is "one hundred thirty million, eight hundred fifty-seven thousand, seven hundred twenty-four".