115031899 has 2 divisors, whose sum is σ = 115031900. Its totient is φ = 115031898.

The previous prime is 115031881. The next prime is 115031921. The reversal of 115031899 is 998130511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115031899 - 2⁹ = 115031387 is a prime.

It is not a weakly prime, because it can be changed into another prime (115031869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57515949 + 57515950.

It is an arithmetic number, because the mean of its divisors is an integer number (57515950).

Almost surely, 2^115031899 is an apocalyptic number.

115031899 is a deficient number, since it is larger than the sum of its proper divisors (1).

115031899 is an equidigital number, since it uses as much as digits as its factorization.

115031899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 37.

The square root of 115031899 is about 10725.2924901841. The cubic root of 115031899 is about 486.3393721570.

The spelling of 115031899 in words is "one hundred fifteen million, thirty-one thousand, eight hundred ninety-nine".