115619816 has 32 divisors (see below), whose sum is σ = 233906400. Its totient is φ = 53261760.

The previous prime is 115619789. The next prime is 115619831. The reversal of 115619816 is 618916511.

It is a self number, because there is not a number n which added to its sum of digits gives 115619816.

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, 105431 + ... + 106521.

It is an arithmetic number, because the mean of its divisors is an integer number (7309575).

Almost surely, 2^115619816 is an apocalyptic number.

It is an amenable number.

115619816 is an abundant number, since it is smaller than the sum of its proper divisors (118286584).

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

115619816 is a wasteful number, since it uses less digits than its factorization.

115619816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129 (or 2125 counting only the distinct ones).

The product of its digits is 12960, while the sum is 38.

The square root of 115619816 is about 10752.6655299977. The cubic root of 115619816 is about 487.1665092384.

The spelling of 115619816 in words is "one hundred fifteen million, six hundred nineteen thousand, eight hundred sixteen".