115609998 has 16 divisors (see below), whose sum is σ = 264251520. Its totient is φ = 33031416.

The previous prime is 115609987. The next prime is 115610017. The reversal of 115609998 is 899906511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376268 + ... + 1376351.

It is an arithmetic number, because the mean of its divisors is an integer number (16515720).

Almost surely, 2^115609998 is an apocalyptic number.

115609998 is an abundant number, since it is smaller than the sum of its proper divisors (148641522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115609998 is a wasteful number, since it uses less digits than its factorization.

115609998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752631.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 115609998 is about 10752.2089823440. The cubic root of 115609998 is about 487.1527193987.

The spelling of 115609998 in words is "one hundred fifteen million, six hundred nine thousand, nine hundred ninety-eight".