111117916 has 48 divisors (see below), whose sum is σ = 253423296. Its totient is φ = 41370624.

The previous prime is 111117901. The next prime is 111117943. The reversal of 111117916 is 619711111.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2791 + ... + 15166.

It is an arithmetic number, because the mean of its divisors is an integer number (5279652).

Almost surely, 2^111117916 is an apocalyptic number.

It is an amenable number.

111117916 is an abundant number, since it is smaller than the sum of its proper divisors (142305380).

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

111117916 is a wasteful number, since it uses less digits than its factorization.

111117916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17998 (or 17996 counting only the distinct ones).

The product of its digits is 378, while the sum is 28.

The square root of 111117916 is about 10541.2483131743. The cubic root of 111117916 is about 480.7596709169.

The spelling of 111117916 in words is "one hundred eleven million, one hundred seventeen thousand, nine hundred sixteen".