136379520 has 96 divisors (see below), whose sum is σ = 470955420. Its totient is φ = 36366336.

The previous prime is 136379513. The next prime is 136379543. The reversal of 136379520 is 25973631.

136379520 is a `hidden beast` number, since 1 + 3 + 63 + 79 + 520 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 134374464 + 2005056 = 11592^2 + 1416^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6079 + ... + 17598.

Almost surely, 2^136379520 is an apocalyptic number.

136379520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136379520 is an abundant number, since it is smaller than the sum of its proper divisors (334575900).

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

136379520 is a wasteful number, since it uses less digits than its factorization.

136379520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23702 (or 23687 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 136379520 is about 11678.1642392972. The cubic root of 136379520 is about 514.7342330628.

The spelling of 136379520 in words is "one hundred thirty-six million, three hundred seventy-nine thousand, five hundred twenty".