12517492 has 18 divisors (see below), whose sum is σ = 23721558. Its totient is φ = 5776992.

The previous prime is 12517489. The next prime is 12517493. The reversal of 12517492 is 29471521.

It can be written as a sum of positive squares in 3 ways, for example, as 155236 + 12362256 = 394^2 + 3516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12517493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8583 + ... + 9934.

Almost surely, 2^12517492 is an apocalyptic number.

It is an amenable number.

12517492 is a deficient number, since it is larger than the sum of its proper divisors (11204066).

12517492 is a wasteful number, since it uses less digits than its factorization.

12517492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18547 (or 18532 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 12517492 is about 3538.0067834870. The cubic root of 12517492 is about 232.1876454535.

The spelling of 12517492 in words is "twelve million, five hundred seventeen thousand, four hundred ninety-two".