115500631 has 2 divisors, whose sum is σ = 115500632. Its totient is φ = 115500630.

The previous prime is 115500613. The next prime is 115500719. The reversal of 115500631 is 136005511.

Together with previous prime (115500613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115500631 - 2¹³ = 115492439 is a prime.

It is a super-2 number, since 2×115500631² = 26680791522796322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115500331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57750315 + 57750316.

It is an arithmetic number, because the mean of its divisors is an integer number (57750316).

Almost surely, 2^115500631 is an apocalyptic number.

115500631 is a deficient number, since it is larger than the sum of its proper divisors (1).

115500631 is an equidigital number, since it uses as much as digits as its factorization.

115500631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 115500631 is about 10747.1219868391. The cubic root of 115500631 is about 486.9990555240. Note that the first 3 decimals are identical.

The spelling of 115500631 in words is "one hundred fifteen million, five hundred thousand, six hundred thirty-one".