111579 has 8 divisors (see below), whose sum is σ = 160272. Its totient is φ = 68640.

The previous prime is 111577. The next prime is 111581. The reversal of 111579 is 975111.

It is an interprime number because it is at equal distance from previous prime (111577) and next prime (111581).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111579 - 2¹ = 111577 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111577) 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, 1392 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (20034).

2¹¹¹⁵⁷⁹ is an apocalyptic number.

111579 is a deficient number, since it is larger than the sum of its proper divisors (48693).

111579 is a wasteful number, since it uses less digits than its factorization.

111579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877.

The product of its digits is 315, while the sum is 24.

The square root of 111579 is about 334.0344293632. The cubic root of 111579 is about 48.1423724316.

The spelling of 111579 in words is "one hundred eleven thousand, five hundred seventy-nine".