126402564 has 24 divisors (see below), whose sum is σ = 295728160. Its totient is φ = 42021504.

The previous prime is 126402539. The next prime is 126402571. The reversal of 126402564 is 465204621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9349 + ... + 18444.

Almost surely, 2^126402564 is an apocalyptic number.

It is an amenable number.

126402564 is an abundant number, since it is smaller than the sum of its proper divisors (169325596).

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

126402564 is a wasteful number, since it uses less digits than its factorization.

126402564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28179 (or 28177 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 126402564 is about 11242.8894862486. The cubic root of 126402564 is about 501.8631341722.

The spelling of 126402564 in words is "one hundred twenty-six million, four hundred two thousand, five hundred sixty-four".