115157998 has 8 divisors (see below), whose sum is σ = 172815192. Its totient is φ = 57552936.

The previous prime is 115157989. The next prime is 115158007. The reversal of 115157998 is 899751511.

It is an interprime number because it is at equal distance from previous prime (115157989) and next prime (115158007).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×115157998² = 26522729006736008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6940 + ... + 16687.

It is an arithmetic number, because the mean of its divisors is an integer number (21601899).

Almost surely, 2^115157998 is an apocalyptic number.

115157998 is a deficient number, since it is larger than the sum of its proper divisors (57657194).

115157998 is a wasteful number, since it uses less digits than its factorization.

115157998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26066.

The product of its digits is 113400, while the sum is 46.

The square root of 115157998 is about 10731.1694609674. The cubic root of 115157998 is about 486.5170171223.

The spelling of 115157998 in words is "one hundred fifteen million, one hundred fifty-seven thousand, nine hundred ninety-eight".