136877111137 has 16 divisors (see below), whose sum is σ = 148730298192. Its totient is φ = 125216179200.

The previous prime is 136877111123. The next prime is 136877111237. The reversal of 136877111137 is 731111778631.

It can be written as a sum of positive squares in 8 ways, for example, as 12214449361 + 124662661776 = 110519^2 + 353076^2 .

It is a cyclic number.

It is not a de Polignac number, because 136877111137 - 2⁷ = 136877111009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136877111237) 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 in 15 ways as a sum of consecutive naturals, for example, 1006443 + ... + 1134319.

It is an arithmetic number, because the mean of its divisors is an integer number (9295643637).

Almost surely, 2^136877111137 is an apocalyptic number.

It is an amenable number.

136877111137 is a deficient number, since it is larger than the sum of its proper divisors (11853187055).

136877111137 is a wasteful number, since it uses less digits than its factorization.

136877111137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128628.

The product of its digits is 148176, while the sum is 46.

Adding to 136877111137 its reverse (731111778631), we get a palindrome (867988889768).

The spelling of 136877111137 in words is "one hundred thirty-six billion, eight hundred seventy-seven million, one hundred eleven thousand, one hundred thirty-seven".