115863388 has 12 divisors (see below), whose sum is σ = 202836312. Its totient is φ = 57910160.

The previous prime is 115863379. The next prime is 115863389. The reversal of 115863388 is 883368511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115863389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18183 + ... + 23713.

It is an arithmetic number, because the mean of its divisors is an integer number (16903026).

Almost surely, 2^115863388 is an apocalyptic number.

It is an amenable number.

115863388 is a deficient number, since it is larger than the sum of its proper divisors (86972924).

115863388 is a wasteful number, since it uses less digits than its factorization.

115863388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772 (or 10770 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 115863388 is about 10763.9856930414. The cubic root of 115863388 is about 487.5083678599.

It can be divided in two parts, 1158 and 63388, that added together give a palindrome (64546).

The spelling of 115863388 in words is "one hundred fifteen million, eight hundred sixty-three thousand, three hundred eighty-eight".