115839618 has 16 divisors (see below), whose sum is σ = 243873120. Its totient is φ = 36580896.

The previous prime is 115839617. The next prime is 115839623. The reversal of 115839618 is 816938511.

It is a self number, because there is not a number n which added to its sum of digits gives 115839618.

It is not an unprimeable number, because it can be changed into a prime (115839613) by changing a digit.

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, 507955 + ... + 508182.

It is an arithmetic number, because the mean of its divisors is an integer number (15242070).

Almost surely, 2^115839618 is an apocalyptic number.

115839618 is an abundant number, since it is smaller than the sum of its proper divisors (128033502).

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

115839618 is a wasteful number, since it uses less digits than its factorization.

115839618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016161.

The product of its digits is 51840, while the sum is 42.

The square root of 115839618 is about 10762.8814914966. The cubic root of 115839618 is about 487.4750272546.

The spelling of 115839618 in words is "one hundred fifteen million, eight hundred thirty-nine thousand, six hundred eighteen".