136264745761 has 2 divisors, whose sum is σ = 136264745762. Its totient is φ = 136264745760.

The previous prime is 136264745759. The next prime is 136264745807. The reversal of 136264745761 is 167547462631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83252446225 + 53012299536 = 288535^2 + 230244^2 .

It is a cyclic number.

It is not a de Polignac number, because 136264745761 - 2¹ = 136264745759 is a prime.

Together with 136264745759, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 136264745699 and 136264745708.

It is not a weakly prime, because it can be changed into another prime (136264745161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68132372880 + 68132372881.

It is an arithmetic number, because the mean of its divisors is an integer number (68132372881).

Almost surely, 2^136264745761 is an apocalyptic number.

It is an amenable number.

136264745761 is a deficient number, since it is larger than the sum of its proper divisors (1).

136264745761 is an equidigital number, since it uses as much as digits as its factorization.

136264745761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 52.

The spelling of 136264745761 in words is "one hundred thirty-six billion, two hundred sixty-four million, seven hundred forty-five thousand, seven hundred sixty-one".