111964971 has 8 divisors (see below), whose sum is σ = 150112144. Its totient is φ = 74230560.

The previous prime is 111964961. The next prime is 111964987. The reversal of 111964971 is 179469111.

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

It is not a de Polignac number, because 111964971 - 2⁷ = 111964843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111964921) 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, 102556 + ... + 103641.

It is an arithmetic number, because the mean of its divisors is an integer number (18764018).

Almost surely, 2^111964971 is an apocalyptic number.

111964971 is a deficient number, since it is larger than the sum of its proper divisors (38147173).

111964971 is a wasteful number, since it uses less digits than its factorization.

111964971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206381.

The product of its digits is 13608, while the sum is 39.

The square root of 111964971 is about 10581.3501501462. The cubic root of 111964971 is about 481.9781946943.

The spelling of 111964971 in words is "one hundred eleven million, nine hundred sixty-four thousand, nine hundred seventy-one".