136197936517 has 2 divisors, whose sum is σ = 136197936518. Its totient is φ = 136197936516.

The previous prime is 136197936481. The next prime is 136197936529. The reversal of 136197936517 is 715639791631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135754665601 + 443270916 = 368449^2 + 21054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136197936517 is a prime.

It is a super-2 number, since 2×136197936517² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136197937517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68098968258 + 68098968259.

It is an arithmetic number, because the mean of its divisors is an integer number (68098968259).

Almost surely, 2^136197936517 is an apocalyptic number.

It is an amenable number.

136197936517 is a deficient number, since it is larger than the sum of its proper divisors (1).

136197936517 is an equidigital number, since it uses as much as digits as its factorization.

136197936517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6429780, while the sum is 58.

The spelling of 136197936517 in words is "one hundred thirty-six billion, one hundred ninety-seven million, nine hundred thirty-six thousand, five hundred seventeen".