111958 has 16 divisors (see below), whose sum is σ = 209664. Its totient is φ = 43560.

The previous prime is 111953. The next prime is 111959. The reversal of 111958 is 859111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210 + ... + 517.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

2¹¹¹⁹⁵⁸ is an apocalyptic number.

111958 is a deficient number, since it is larger than the sum of its proper divisors (97706).

111958 is a wasteful number, since it uses less digits than its factorization.

111958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747.

The product of its digits is 360, while the sum is 25.

The square root of 111958 is about 334.6012552278. The cubic root of 111958 is about 48.1968191745.

The spelling of 111958 in words is "one hundred eleven thousand, nine hundred fifty-eight".