111579379 has 2 divisors, whose sum is σ = 111579380. Its totient is φ = 111579378.

The previous prime is 111579373. The next prime is 111579397. The reversal of 111579379 is 973975111.

Together with next prime (111579397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (973975111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111579379 - 2²³ = 103190771 is a prime.

It is not a weakly prime, because it can be changed into another prime (111579373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55789689 + 55789690.

It is an arithmetic number, because the mean of its divisors is an integer number (55789690).

Almost surely, 2^111579379 is an apocalyptic number.

111579379 is a deficient number, since it is larger than the sum of its proper divisors (1).

111579379 is an equidigital number, since it uses as much as digits as its factorization.

111579379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59535, while the sum is 43.

The square root of 111579379 is about 10563.1140768241. The cubic root of 111579379 is about 481.4242693988.

The spelling of 111579379 in words is "one hundred eleven million, five hundred seventy-nine thousand, three hundred seventy-nine".