136435631 has 2 divisors, whose sum is σ = 136435632. Its totient is φ = 136435630.

The previous prime is 136435573. The next prime is 136435657. The reversal of 136435631 is 136534631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136435631 - 2¹⁰ = 136434607 is a prime.

It is a super-2 number, since 2×136435631² = 37229362812736322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136435231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68217815 + 68217816.

It is an arithmetic number, because the mean of its divisors is an integer number (68217816).

Almost surely, 2^136435631 is an apocalyptic number.

136435631 is a deficient number, since it is larger than the sum of its proper divisors (1).

136435631 is an equidigital number, since it uses as much as digits as its factorization.

136435631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 136435631 is about 11680.5663818156. The cubic root of 136435631 is about 514.8048162227.

It can be divided in two parts, 1364 and 35631, that multiplied together give a palindrome (48600684).

The spelling of 136435631 in words is "one hundred thirty-six million, four hundred thirty-five thousand, six hundred thirty-one".