136635539 has 2 divisors, whose sum is σ = 136635540. Its totient is φ = 136635538.

The previous prime is 136635509. The next prime is 136635599. The reversal of 136635539 is 935536631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136635539 - 2¹⁶ = 136570003 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_7732769 and since 136635539 and 7732769 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 136635496 and 136635505.

It is not a weakly prime, because it can be changed into another prime (136635509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68317769 + 68317770.

It is an arithmetic number, because the mean of its divisors is an integer number (68317770).

Almost surely, 2^136635539 is an apocalyptic number.

136635539 is a deficient number, since it is larger than the sum of its proper divisors (1).

136635539 is an equidigital number, since it uses as much as digits as its factorization.

136635539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 218700, while the sum is 41.

The square root of 136635539 is about 11689.1205400578. The cubic root of 136635539 is about 515.0561273543.

The spelling of 136635539 in words is "one hundred thirty-six million, six hundred thirty-five thousand, five hundred thirty-nine".