136765513 has 2 divisors, whose sum is σ = 136765514. Its totient is φ = 136765512.

The previous prime is 136765501. The next prime is 136765543. The reversal of 136765513 is 315567631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80335369 + 56430144 = 8963^2 + 7512^2 .

It is a cyclic number.

It is not a de Polignac number, because 136765513 - 2⁹ = 136765001 is a prime.

It is not a weakly prime, because it can be changed into another prime (136765543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68382756 + 68382757.

It is an arithmetic number, because the mean of its divisors is an integer number (68382757).

Almost surely, 2^136765513 is an apocalyptic number.

It is an amenable number.

136765513 is a deficient number, since it is larger than the sum of its proper divisors (1).

136765513 is an equidigital number, since it uses as much as digits as its factorization.

136765513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 136765513 is about 11694.6788326999. The cubic root of 136765513 is about 515.2193906119.

The spelling of 136765513 in words is "one hundred thirty-six million, seven hundred sixty-five thousand, five hundred thirteen".