15131056 has 20 divisors (see below), whose sum is σ = 30591792. Its totient is φ = 7236416.

The previous prime is 15131041. The next prime is 15131063. The reversal of 15131056 is 65013151.

15131056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 20191 + ... + 20926.

Almost surely, 2^15131056 is an apocalyptic number.

15131056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15131056 is an abundant number, since it is smaller than the sum of its proper divisors (15460736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15131056 is a wasteful number, since it uses less digits than its factorization.

15131056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41148 (or 41142 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 15131056 is about 3889.8658074540. The cubic root of 15131056 is about 247.3373743759.

The spelling of 15131056 in words is "fifteen million, one hundred thirty-one thousand, fifty-six".