111964079 has 4 divisors (see below), whose sum is σ = 112677384. Its totient is φ = 111250776.

The previous prime is 111964067. The next prime is 111964103. The reversal of 111964079 is 970469111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111964079 - 2²⁰ = 110915503 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 (111964019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356417 + ... + 356730.

It is an arithmetic number, because the mean of its divisors is an integer number (28169346).

Almost surely, 2^111964079 is an apocalyptic number.

111964079 is a deficient number, since it is larger than the sum of its proper divisors (713305).

111964079 is an equidigital number, since it uses as much as digits as its factorization.

111964079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713304.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 111964079 is about 10581.3080004317. The cubic root of 111964079 is about 481.9769147532.

The spelling of 111964079 in words is "one hundred eleven million, nine hundred sixty-four thousand, seventy-nine".