12515872 has 24 divisors (see below), whose sum is σ = 24763536. Its totient is φ = 6226752.

The previous prime is 12515869. The next prime is 12515873. The reversal of 12515872 is 27851521.

It is not an unprimeable number, because it can be changed into a prime (12515873) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 6403 + ... + 8125.

It is an arithmetic number, because the mean of its divisors is an integer number (1031814).

Almost surely, 2^12515872 is an apocalyptic number.

It is an amenable number.

12515872 is a deficient number, since it is larger than the sum of its proper divisors (12247664).

12515872 is a wasteful number, since it uses less digits than its factorization.

12515872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960 (or 1952 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 12515872 is about 3537.7778336125. Note that the first 3 decimals coincide. The cubic root of 12515872 is about 232.1776285317.

The spelling of 12515872 in words is "twelve million, five hundred fifteen thousand, eight hundred seventy-two".