111979516 has 24 divisors (see below), whose sum is σ = 215991216. Its totient is φ = 50373120.

The previous prime is 111979507. The next prime is 111979519. The reversal of 111979516 is 615979111.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111979519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8851 + ... + 17386.

It is an arithmetic number, because the mean of its divisors is an integer number (8999634).

Almost surely, 2^111979516 is an apocalyptic number.

It is an amenable number.

111979516 is a deficient number, since it is larger than the sum of its proper divisors (104011700).

111979516 is a wasteful number, since it uses less digits than its factorization.

111979516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26349 (or 26347 counting only the distinct ones).

The product of its digits is 17010, while the sum is 40.

The square root of 111979516 is about 10582.0374219713. The cubic root of 111979516 is about 481.9990645230. Note that the first 3 decimals are identical.

The spelling of 111979516 in words is "one hundred eleven million, nine hundred seventy-nine thousand, five hundred sixteen".