111879613 has 8 divisors (see below), whose sum is σ = 117491328. Its totient is φ = 106330224.

The previous prime is 111879473. The next prime is 111879617. The reversal of 111879613 is 316978111.

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

It is a cyclic number.

It is not a de Polignac number, because 111879613 - 2⁹ = 111879101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111879617) 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, 11881 + ... + 19102.

It is an arithmetic number, because the mean of its divisors is an integer number (14686416).

Almost surely, 2^111879613 is an apocalyptic number.

It is an amenable number.

111879613 is a deficient number, since it is larger than the sum of its proper divisors (5611715).

111879613 is a wasteful number, since it uses less digits than its factorization.

111879613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31163.

The product of its digits is 9072, while the sum is 37.

The square root of 111879613 is about 10577.3159638918. The cubic root of 111879613 is about 481.8556827053.

The spelling of 111879613 in words is "one hundred eleven million, eight hundred seventy-nine thousand, six hundred thirteen".