136777131 has 12 divisors (see below), whose sum is σ = 197900352. Its totient is φ = 91030896.

The previous prime is 136777127. The next prime is 136777133. The reversal of 136777131 is 131777631.

It is not a de Polignac number, because 136777131 - 2² = 136777127 is a prime.

It is a super-2 number, since 2×136777131² = 37415967129182322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (136777133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7056 + ... + 17981.

It is an arithmetic number, because the mean of its divisors is an integer number (16491696).

Almost surely, 2^136777131 is an apocalyptic number.

136777131 is a deficient number, since it is larger than the sum of its proper divisors (61123221).

136777131 is a wasteful number, since it uses less digits than its factorization.

136777131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25650 (or 25647 counting only the distinct ones).

The product of its digits is 18522, while the sum is 36.

The square root of 136777131 is about 11695.1755437873. The cubic root of 136777131 is about 515.2339792053.

The spelling of 136777131 in words is "one hundred thirty-six million, seven hundred seventy-seven thousand, one hundred thirty-one".