12543504 has 20 divisors (see below), whose sum is σ = 32404176. Its totient is φ = 4181152.

The previous prime is 12543497. The next prime is 12543511. The reversal of 12543504 is 40534521.

12543504 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12543497) and next prime (12543511).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 130614 + ... + 130709.

Almost surely, 2^12543504 is an apocalyptic number.

It is an amenable number.

12543504 is an abundant number, since it is smaller than the sum of its proper divisors (19860672).

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

12543504 is a wasteful number, since it uses less digits than its factorization.

12543504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261334 (or 261328 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 12543504 is about 3541.6809568339. The cubic root of 12543504 is about 232.3483668471.

The spelling of 12543504 in words is "twelve million, five hundred forty-three thousand, five hundred four".