115431499 has 2 divisors, whose sum is σ = 115431500. Its totient is φ = 115431498.

The previous prime is 115431473. The next prime is 115431521. The reversal of 115431499 is 994134511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115431499 - 2²³ = 107042891 is a prime.

It is a super-2 number, since 2×115431499² = 26648861922774002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115441499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57715749 + 57715750.

It is an arithmetic number, because the mean of its divisors is an integer number (57715750).

Almost surely, 2^115431499 is an apocalyptic number.

115431499 is a deficient number, since it is larger than the sum of its proper divisors (1).

115431499 is an equidigital number, since it uses as much as digits as its factorization.

115431499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 37.

The square root of 115431499 is about 10743.9052024857. The cubic root of 115431499 is about 486.9018729726.

The spelling of 115431499 in words is "one hundred fifteen million, four hundred thirty-one thousand, four hundred ninety-nine".