12515232 has 24 divisors (see below), whose sum is σ = 32852736. Its totient is φ = 4171712.

The previous prime is 12515203. The next prime is 12515311. The reversal of 12515232 is 23251521.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 12515199 and 12515208.

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, 65088 + ... + 65279.

It is an arithmetic number, because the mean of its divisors is an integer number (1368864).

Almost surely, 2^12515232 is an apocalyptic number.

12515232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12515232 is an abundant number, since it is smaller than the sum of its proper divisors (20337504).

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

12515232 is a wasteful number, since it uses less digits than its factorization.

12515232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130380 (or 130372 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 12515232 is about 3537.6873801963. The cubic root of 12515232 is about 232.1736709911.

Adding to 12515232 its reverse (23251521), we get a palindrome (35766753).

The spelling of 12515232 in words is "twelve million, five hundred fifteen thousand, two hundred thirty-two".