136725920 has 48 divisors (see below), whose sum is σ = 323793288. Its totient is φ = 54558720.

The previous prime is 136725913. The next prime is 136725929. The reversal of 136725920 is 29527631.

136725920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 133726096 + 2999824 = 11564^2 + 1732^2 .

It is not an unprimeable number, because it can be changed into a prime (136725929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91580 + ... + 93060.

Almost surely, 2^136725920 is an apocalyptic number.

136725920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136725920 is an abundant number, since it is smaller than the sum of its proper divisors (187067368).

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

136725920 is a wasteful number, since it uses less digits than its factorization.

136725920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 136725920 is about 11692.9859317456. The cubic root of 136725920 is about 515.1696679158.

The spelling of 136725920 in words is "one hundred thirty-six million, seven hundred twenty-five thousand, nine hundred twenty".