12540568 has 24 divisors (see below), whose sum is σ = 24059700. Its totient is φ = 6126192.

The previous prime is 12540529. The next prime is 12540581. The reversal of 12540568 is 86504521.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76855 + ... + 77017.

Almost surely, 2^12540568 is an apocalyptic number.

It is an amenable number.

12540568 is a deficient number, since it is larger than the sum of its proper divisors (11519132).

12540568 is an equidigital number, since it uses as much as digits as its factorization.

12540568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 12540568 is about 3541.2664401313. The cubic root of 12540568 is about 232.3302371965.

The spelling of 12540568 in words is "twelve million, five hundred forty thousand, five hundred sixty-eight".