136213365637 has 2 divisors, whose sum is σ = 136213365638. Its totient is φ = 136213365636.

The previous prime is 136213365601. The next prime is 136213365643. The reversal of 136213365637 is 736563312631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133433861796 + 2779503841 = 365286^2 + 52721^2 .

It is an emirp because it is prime and its reverse (736563312631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136213365637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136213305637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68106682818 + 68106682819.

It is an arithmetic number, because the mean of its divisors is an integer number (68106682819).

Almost surely, 2^136213365637 is an apocalyptic number.

It is an amenable number.

136213365637 is a deficient number, since it is larger than the sum of its proper divisors (1).

136213365637 is an equidigital number, since it uses as much as digits as its factorization.

136213365637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 46.

The spelling of 136213365637 in words is "one hundred thirty-six billion, two hundred thirteen million, three hundred sixty-five thousand, six hundred thirty-seven".