136725568 has 56 divisors (see below), whose sum is σ = 313895232. Its totient is φ = 57874944.

The previous prime is 136725559. The next prime is 136725571. The reversal of 136725568 is 865527631.

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

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 35346 + ... + 39022.

It is an arithmetic number, because the mean of its divisors is an integer number (5605272).

Almost surely, 2^136725568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136725568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156947616).

136725568 is an abundant number, since it is smaller than the sum of its proper divisors (177169664).

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

136725568 is an equidigital number, since it uses as much as digits as its factorization.

136725568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779 (or 3769 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The square root of 136725568 is about 11692.9708799774. The cubic root of 136725568 is about 515.1692258151.

The spelling of 136725568 in words is "one hundred thirty-six million, seven hundred twenty-five thousand, five hundred sixty-eight".