111980456 has 16 divisors (see below), whose sum is σ = 239958240. Its totient is φ = 47991600.

The previous prime is 111980441. The next prime is 111980459. The reversal of 111980456 is 654089111.

It is not an unprimeable number, because it can be changed into a prime (111980459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999770 + ... + 999881.

It is an arithmetic number, because the mean of its divisors is an integer number (14997390).

Almost surely, 2^111980456 is an apocalyptic number.

It is an amenable number.

111980456 is an abundant number, since it is smaller than the sum of its proper divisors (127977784).

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

111980456 is a wasteful number, since it uses less digits than its factorization.

111980456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999664 (or 1999660 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 111980456 is about 10582.0818367654. The cubic root of 111980456 is about 482.0004132157. Note that the first 3 decimals are identical.

The spelling of 111980456 in words is "one hundred eleven million, nine hundred eighty thousand, four hundred fifty-six".