115981224 has 16 divisors (see below), whose sum is σ = 289953120. Its totient is φ = 38660400.

The previous prime is 115981219. The next prime is 115981231. The reversal of 115981224 is 422189511.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2416252 + ... + 2416299.

It is an arithmetic number, because the mean of its divisors is an integer number (18122070).

Almost surely, 2^115981224 is an apocalyptic number.

It is an amenable number.

115981224 is an abundant number, since it is smaller than the sum of its proper divisors (173971896).

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

115981224 is a wasteful number, since it uses less digits than its factorization.

115981224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832560 (or 4832556 counting only the distinct ones).

The product of its digits is 5760, while the sum is 33.

The square root of 115981224 is about 10769.4579250768. The cubic root of 115981224 is about 487.6735813161.

The spelling of 115981224 in words is "one hundred fifteen million, nine hundred eighty-one thousand, two hundred twenty-four".