136764657 has 12 divisors (see below), whose sum is σ = 197692404. Its totient is φ = 91110240.

The previous prime is 136764611. The next prime is 136764671. The reversal of 136764657 is 756467631.

136764657 is digitally balanced in base 2, 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 2 ways, for example, as 64786401 + 71978256 = 8049^2 + 8484^2 .

It is not a de Polignac number, because 136764657 - 2¹¹ = 136762609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136764457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9807 + ... + 19227.

It is an arithmetic number, because the mean of its divisors is an integer number (16474367).

Almost surely, 2^136764657 is an apocalyptic number.

It is an amenable number.

136764657 is a deficient number, since it is larger than the sum of its proper divisors (60927747).

136764657 is a wasteful number, since it uses less digits than its factorization.

136764657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11040 (or 11037 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 136764657 is about 11694.6422348014. The cubic root of 136764657 is about 515.2183157095.

The spelling of 136764657 in words is "one hundred thirty-six million, seven hundred sixty-four thousand, six hundred fifty-seven".