111853568 has 30 divisors (see below), whose sum is σ = 223733076. Its totient is φ = 55918592.

The previous prime is 111853541. The next prime is 111853597. The reversal of 111853568 is 865358111.

It is a happy number.

It is a super-2 number, since 2×111853568² = 25022441348661248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12971 + ... + 19797.

Almost surely, 2^111853568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111853568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111866538).

111853568 is an abundant number, since it is smaller than the sum of its proper divisors (111879508).

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

111853568 is an frugal number, since it uses more digits than its factorization.

111853568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855 (or 6829 counting only the distinct ones).

The product of its digits is 28800, while the sum is 38.

The square root of 111853568 is about 10576.0847197817. The cubic root of 111853568 is about 481.8182886264.

The spelling of 111853568 in words is "one hundred eleven million, eight hundred fifty-three thousand, five hundred sixty-eight".