136724656 has 10 divisors (see below), whose sum is σ = 264904052. Its totient is φ = 68362320.

The previous prime is 136724617. The next prime is 136724669. The reversal of 136724656 is 656427631.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4272630 + ... + 4272661.

Almost surely, 2^136724656 is an apocalyptic number.

136724656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136724656 is a deficient number, since it is larger than the sum of its proper divisors (128179396).

136724656 is an equidigital number, since it uses as much as digits as its factorization.

136724656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8545299 (or 8545293 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 136724656 is about 11692.9318821243. The cubic root of 136724656 is about 515.1680803688.

The spelling of 136724656 in words is "one hundred thirty-six million, seven hundred twenty-four thousand, six hundred fifty-six".