115361638 has 16 divisors (see below), whose sum is σ = 201116160. Its totient is φ = 48602376.

The previous prime is 115361621. The next prime is 115361651. The reversal of 115361638 is 836163511.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 69006 + ... + 70657.

It is an arithmetic number, because the mean of its divisors is an integer number (12569760).

Almost surely, 2^115361638 is an apocalyptic number.

115361638 is a deficient number, since it is larger than the sum of its proper divisors (85754522).

115361638 is a wasteful number, since it uses less digits than its factorization.

115361638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139731.

The product of its digits is 12960, while the sum is 34.

The square root of 115361638 is about 10740.6535182921. The cubic root of 115361638 is about 486.8036262012.

The spelling of 115361638 in words is "one hundred fifteen million, three hundred sixty-one thousand, six hundred thirty-eight".