136664135239 has 2 divisors, whose sum is σ = 136664135240. Its totient is φ = 136664135238.

The previous prime is 136664135227. The next prime is 136664135261. The reversal of 136664135239 is 932531466631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136664135239 - 2⁹ = 136664134727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136664135192 and 136664135201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136664135219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68332067619 + 68332067620.

It is an arithmetic number, because the mean of its divisors is an integer number (68332067620).

Almost surely, 2^136664135239 is an apocalyptic number.

136664135239 is a deficient number, since it is larger than the sum of its proper divisors (1).

136664135239 is an equidigital number, since it uses as much as digits as its factorization.

136664135239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 49.

The spelling of 136664135239 in words is "one hundred thirty-six billion, six hundred sixty-four million, one hundred thirty-five thousand, two hundred thirty-nine".