115140631 has 2 divisors, whose sum is σ = 115140632. Its totient is φ = 115140630.

The previous prime is 115140617. The next prime is 115140653. The reversal of 115140631 is 136041511.

It is an a-pointer prime, because the next prime (115140653) can be obtained adding 115140631 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115140631 - 2⁹ = 115140119 is a prime.

It is a super-2 number, since 2×115140631² = 26514729814156322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115140601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57570315 + 57570316.

It is an arithmetic number, because the mean of its divisors is an integer number (57570316).

Almost surely, 2^115140631 is an apocalyptic number.

115140631 is a deficient number, since it is larger than the sum of its proper divisors (1).

115140631 is an equidigital number, since it uses as much as digits as its factorization.

115140631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 115140631 is about 10730.3602455836. The cubic root of 115140631 is about 486.4925586508.

The spelling of 115140631 in words is "one hundred fifteen million, one hundred forty thousand, six hundred thirty-one".