111956916 has 24 divisors (see below), whose sum is σ = 272591424. Its totient is φ = 35696320.

The previous prime is 111956909. The next prime is 111956941. The reversal of 111956916 is 619659111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202545 + ... + 203096.

It is an arithmetic number, because the mean of its divisors is an integer number (11357976).

Almost surely, 2^111956916 is an apocalyptic number.

It is an amenable number.

111956916 is an abundant number, since it is smaller than the sum of its proper divisors (160634508).

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

111956916 is a wasteful number, since it uses less digits than its factorization.

111956916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405671 (or 405669 counting only the distinct ones).

The product of its digits is 14580, while the sum is 39.

The square root of 111956916 is about 10580.9695207953. The cubic root of 111956916 is about 481.9666362357.

The spelling of 111956916 in words is "one hundred eleven million, nine hundred fifty-six thousand, nine hundred sixteen".