136325520 has 120 divisors (see below), whose sum is σ = 473686200. Its totient is φ = 35094528.

The previous prime is 136325509. The next prime is 136325587. The reversal of 136325520 is 25523631.

136325520 is a `hidden beast` number, since 1 + 3 + 632 + 5 + 5 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1115136 + 135210384 = 1056^2 + 11628^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17616 + ... + 24144.

It is an arithmetic number, because the mean of its divisors is an integer number (3947385).

Almost surely, 2^136325520 is an apocalyptic number.

136325520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136325520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236843100).

136325520 is an abundant number, since it is smaller than the sum of its proper divisors (337360680).

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

136325520 is a wasteful number, since it uses less digits than its factorization.

136325520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577 (or 6568 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 136325520 is about 11675.8520031730. The cubic root of 136325520 is about 514.6662870887. Note that the first 3 decimals are identical.

The spelling of 136325520 in words is "one hundred thirty-six million, three hundred twenty-five thousand, five hundred twenty".