136520456 has 32 divisors (see below), whose sum is σ = 268237440. Its totient is φ = 65015808.

The previous prime is 136520443. The next prime is 136520507. The reversal of 136520456 is 654025631.

It is a super-3 number, since 3×136520456³ (a number of 25 digits) contains 333 as substring.

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, 45845 + ... + 48731.

It is an arithmetic number, because the mean of its divisors is an integer number (8382420).

Almost surely, 2^136520456 is an apocalyptic number.

It is an amenable number.

136520456 is a deficient number, since it is larger than the sum of its proper divisors (131716984).

136520456 is a wasteful number, since it uses less digits than its factorization.

136520456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173 (or 3169 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 136520456 is about 11684.1968487355. The cubic root of 136520456 is about 514.9114825715.

The spelling of 136520456 in words is "one hundred thirty-six million, five hundred twenty thousand, four hundred fifty-six".