136402456 has 16 divisors (see below), whose sum is σ = 256152600. Its totient is φ = 68095104.

The previous prime is 136402447. The next prime is 136402477. The reversal of 136402456 is 654204631.

It is a congruent number.

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, 7665 + ... + 18208.

Almost surely, 2^136402456 is an apocalyptic number.

It is an amenable number.

136402456 is a deficient number, since it is larger than the sum of its proper divisors (119750144).

136402456 is a wasteful number, since it uses less digits than its factorization.

136402456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26538 (or 26534 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 136402456 is about 11679.1462016707. The cubic root of 136402456 is about 514.7630870593.

The spelling of 136402456 in words is "one hundred thirty-six million, four hundred two thousand, four hundred fifty-six".