12515668 has 12 divisors (see below), whose sum is σ = 23893632. Its totient is φ = 5688920.

The previous prime is 12515663. The next prime is 12515669. The reversal of 12515668 is 86651521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142180 + ... + 142267.

It is an arithmetic number, because the mean of its divisors is an integer number (1991136).

Almost surely, 2^12515668 is an apocalyptic number.

It is an amenable number.

12515668 is a deficient number, since it is larger than the sum of its proper divisors (11377964).

12515668 is a wasteful number, since it uses less digits than its factorization.

12515668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284462 (or 284460 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 12515668 is about 3537.7490018372. The cubic root of 12515668 is about 232.1763670803.

The spelling of 12515668 in words is "twelve million, five hundred fifteen thousand, six hundred sixty-eight".