136968564 has 24 divisors (see below), whose sum is σ = 320995360. Its totient is φ = 45455904.

The previous prime is 136968553. The next prime is 136968581. The reversal of 136968564 is 465869631.

136968564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 22174 + ... + 27669.

Almost surely, 2^136968564 is an apocalyptic number.

It is an amenable number.

136968564 is an abundant number, since it is smaller than the sum of its proper divisors (184026796).

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

136968564 is a wasteful number, since it uses less digits than its factorization.

136968564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50079 (or 50077 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 136968564 is about 11703.3569543102. The cubic root of 136968564 is about 515.4742406339.

The spelling of 136968564 in words is "one hundred thirty-six million, nine hundred sixty-eight thousand, five hundred sixty-four".