111843 has 18 divisors (see below), whose sum is σ = 175604. Its totient is φ = 68544.

The previous prime is 111833. The next prime is 111847. The reversal of 111843 is 348111.

It is not a de Polignac number, because 111843 - 2⁴ = 111827 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111847) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2580 + ... + 2622.

2¹¹¹⁸⁴³ is an apocalyptic number.

111843 is a deficient number, since it is larger than the sum of its proper divisors (63761).

111843 is a wasteful number, since it uses less digits than its factorization.

111843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 63 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 111843 is about 334.4293647394. The cubic root of 111843 is about 48.1803113977.

Adding to 111843 its reverse (348111), we get a palindrome (459954).

The spelling of 111843 in words is "one hundred eleven thousand, eight hundred forty-three".