136823587298813 has 2 divisors, whose sum is σ = 136823587298814. Its totient is φ = 136823587298812.

The previous prime is 136823587298707. The next prime is 136823587298863. The reversal of 136823587298813 is 318892785328631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133751006015929 + 3072581282884 = 11565077^2 + 1752878^2 .

It is an emirp because it is prime and its reverse (318892785328631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136823587298813 - 2²⁴ = 136823570521597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136823587298863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68411793649406 + 68411793649407.

It is an arithmetic number, because the mean of its divisors is an integer number (68411793649407).

Almost surely, 2^{136823587298813} is an apocalyptic number.

It is an amenable number.

136823587298813 is a deficient number, since it is larger than the sum of its proper divisors (1).

136823587298813 is an equidigital number, since it uses as much as digits as its factorization.

136823587298813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 836075520, while the sum is 74.

The spelling of 136823587298813 in words is "one hundred thirty-six trillion, eight hundred twenty-three billion, five hundred eighty-seven million, two hundred ninety-eight thousand, eight hundred thirteen".