111856 has 10 divisors (see below), whose sum is σ = 216752. Its totient is φ = 55920.

The previous prime is 111847. The next prime is 111857. The reversal of 111856 is 658111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3480 + ... + 3511.

2¹¹¹⁸⁵⁶ is an apocalyptic number.

111856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

111856 is a deficient number, since it is larger than the sum of its proper divisors (104896).

111856 is an equidigital number, since it uses as much as digits as its factorization.

111856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6999 (or 6993 counting only the distinct ones).

The product of its digits is 240, while the sum is 22.

The square root of 111856 is about 334.4488002669. The cubic root of 111856 is about 48.1821780613.

Adding to 111856 its reverse (658111), we get a palindrome (769967).

The spelling of 111856 in words is "one hundred eleven thousand, eight hundred fifty-six".