136117839 has 24 divisors (see below), whose sum is σ = 214399872. Its totient is φ = 76146720.

The previous prime is 136117831. The next prime is 136117867. The reversal of 136117839 is 938711631.

It is not a de Polignac number, because 136117839 - 2³ = 136117831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 136117797 and 136117806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136117831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6627 + ... + 17780.

It is an arithmetic number, because the mean of its divisors is an integer number (8933328).

Almost surely, 2^136117839 is an apocalyptic number.

136117839 is a deficient number, since it is larger than the sum of its proper divisors (78282033).

136117839 is a wasteful number, since it uses less digits than its factorization.

136117839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24447 (or 24434 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 136117839 is about 11666.9550011989. The cubic root of 136117839 is about 514.4048033186.

The spelling of 136117839 in words is "one hundred thirty-six million, one hundred seventeen thousand, eight hundred thirty-nine".