115677631 has 2 divisors, whose sum is σ = 115677632. Its totient is φ = 115677630.

The previous prime is 115677613. The next prime is 115677659. The reversal of 115677631 is 136776511.

Together with previous prime (115677613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (136776511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115677631 - 2⁵ = 115677599 is a prime.

It is a super-2 number, since 2×115677631² = 26762628627544322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115677671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57838815 + 57838816.

It is an arithmetic number, because the mean of its divisors is an integer number (57838816).

Almost surely, 2^115677631 is an apocalyptic number.

115677631 is a deficient number, since it is larger than the sum of its proper divisors (1).

115677631 is an equidigital number, since it uses as much as digits as its factorization.

115677631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 37.

The square root of 115677631 is about 10755.3535971627. The cubic root of 115677631 is about 487.2476972773.

It can be divided in two parts, 1156 and 77631, that added together give a palindrome (78787).

The spelling of 115677631 in words is "one hundred fifteen million, six hundred seventy-seven thousand, six hundred thirty-one".