111879 has 12 divisors (see below), whose sum is σ = 167232. Its totient is φ = 72000.

The previous prime is 111871. The next prime is 111893. The reversal of 111879 is 978111.

It is not a de Polignac number, because 111879 - 2³ = 111871 is a prime.

111879 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79 + ... + 479.

It is an arithmetic number, because the mean of its divisors is an integer number (13936).

2¹¹¹⁸⁷⁹ is an apocalyptic number.

111879 is a deficient number, since it is larger than the sum of its proper divisors (55353).

111879 is a wasteful number, since it uses less digits than its factorization.

111879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 435 counting only the distinct ones).

The product of its digits is 504, while the sum is 27.

The square root of 111879 is about 334.4831834338. The cubic root of 111879 is about 48.1854802658.

It can be divided in two parts, 111 and 879, that added together give a triangular number (990 = T₄₄).

The spelling of 111879 in words is "one hundred eleven thousand, eight hundred seventy-nine".