115158899 has 2 divisors, whose sum is σ = 115158900. Its totient is φ = 115158898.

The previous prime is 115158889. The next prime is 115158917. The reversal of 115158899 is 998851511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115158899 - 2¹² = 115154803 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (115158839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57579449 + 57579450.

It is an arithmetic number, because the mean of its divisors is an integer number (57579450).

Almost surely, 2^115158899 is an apocalyptic number.

115158899 is a deficient number, since it is larger than the sum of its proper divisors (1).

115158899 is an equidigital number, since it uses as much as digits as its factorization.

115158899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 47.

The square root of 115158899 is about 10731.2114413984. The cubic root of 115158899 is about 486.5182859607.

The spelling of 115158899 in words is "one hundred fifteen million, one hundred fifty-eight thousand, eight hundred ninety-nine".