12531368 has 16 divisors (see below), whose sum is σ = 23539380. Its totient is φ = 6254208.

The previous prime is 12531359. The next prime is 12531383. The reversal of 12531368 is 86313521.

It can be written as a sum of positive squares in 2 ways, for example, as 12517444 + 13924 = 3538^2 + 118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12531368.

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, 4796 + ... + 6932.

Almost surely, 2^12531368 is an apocalyptic number.

It is an amenable number.

12531368 is a deficient number, since it is larger than the sum of its proper divisors (11008012).

12531368 is a wasteful number, since it uses less digits than its factorization.

12531368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876 (or 2872 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 12531368 is about 3539.9672314868. The cubic root of 12531368 is about 232.2734093323.

Adding to 12531368 its reverse (86313521), we get a palindrome (98844889).

The spelling of 12531368 in words is "twelve million, five hundred thirty-one thousand, three hundred sixty-eight".