136165831 has 2 divisors, whose sum is σ = 136165832. Its totient is φ = 136165830.

The previous prime is 136165823. The next prime is 136165871. The reversal of 136165831 is 138561631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136165831 - 2³ = 136165823 is a prime.

It is a super-2 number, since 2×136165831² = 37082267063841122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136165811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68082915 + 68082916.

It is an arithmetic number, because the mean of its divisors is an integer number (68082916).

Almost surely, 2^136165831 is an apocalyptic number.

136165831 is a deficient number, since it is larger than the sum of its proper divisors (1).

136165831 is an equidigital number, since it uses as much as digits as its factorization.

136165831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 136165831 is about 11669.0115691090. The cubic root of 136165831 is about 514.4652519580.

The spelling of 136165831 in words is "one hundred thirty-six million, one hundred sixty-five thousand, eight hundred thirty-one".