136966631 has 2 divisors, whose sum is σ = 136966632. Its totient is φ = 136966630.

The previous prime is 136966561. The next prime is 136966651. The reversal of 136966631 is 136669631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136966631 is a prime.

It is a super-2 number, since 2×136966631² = 37519716014980322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136966651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68483315 + 68483316.

It is an arithmetic number, because the mean of its divisors is an integer number (68483316).

Almost surely, 2^136966631 is an apocalyptic number.

136966631 is a deficient number, since it is larger than the sum of its proper divisors (1).

136966631 is an equidigital number, since it uses as much as digits as its factorization.

136966631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 136966631 is about 11703.2743708759. The cubic root of 136966631 is about 515.4718157067.

The spelling of 136966631 in words is "one hundred thirty-six million, nine hundred sixty-six thousand, six hundred thirty-one".