136534720 has 56 divisors (see below), whose sum is σ = 371575584. Its totient is φ = 46811136.

The previous prime is 136534711. The next prime is 136534759. The reversal of 136534720 is 27435631.

It is a tau number, because it is divible by the number of its divisors (56).

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, 28237 + ... + 32716.

Almost surely, 2^136534720 is an apocalyptic number.

136534720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136534720 is an abundant number, since it is smaller than the sum of its proper divisors (235040864).

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

136534720 is an equidigital number, since it uses as much as digits as its factorization.

136534720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60977 (or 60967 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 136534720 is about 11684.8072299033. The cubic root of 136534720 is about 514.9294150285.

The spelling of 136534720 in words is "one hundred thirty-six million, five hundred thirty-four thousand, seven hundred twenty".