136387764 has 36 divisors (see below), whose sum is σ = 347989824. Its totient is φ = 45036432.

The previous prime is 136387751. The next prime is 136387777. The reversal of 136387764 is 467783631.

136387764 is a `hidden beast` number, since 1 + 3 + 638 + 7 + 7 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (136387751) and next prime (136387777).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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, 13852 + ... + 21555.

It is an arithmetic number, because the mean of its divisors is an integer number (9666384).

Almost surely, 2^136387764 is an apocalyptic number.

It is an amenable number.

136387764 is an abundant number, since it is smaller than the sum of its proper divisors (211602060).

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

136387764 is a wasteful number, since it uses less digits than its factorization.

136387764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35524 (or 35519 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 136387764 is about 11678.5172003983. The cubic root of 136387764 is about 514.7446045700.

The spelling of 136387764 in words is "one hundred thirty-six million, three hundred eighty-seven thousand, seven hundred sixty-four".