136564600397 has 2 divisors, whose sum is σ = 136564600398. Its totient is φ = 136564600396.

The previous prime is 136564600357. The next prime is 136564600477. The reversal of 136564600397 is 793006465631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72849248836 + 63715351561 = 269906^2 + 252419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136564600397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136564600357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68282300198 + 68282300199.

It is an arithmetic number, because the mean of its divisors is an integer number (68282300199).

Almost surely, 2^136564600397 is an apocalyptic number.

It is an amenable number.

136564600397 is a deficient number, since it is larger than the sum of its proper divisors (1).

136564600397 is an equidigital number, since it uses as much as digits as its factorization.

136564600397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 136564600397 in words is "one hundred thirty-six billion, five hundred sixty-four million, six hundred thousand, three hundred ninety-seven".