111972963 has 4 divisors (see below), whose sum is σ = 149297288. Its totient is φ = 74648640.

The previous prime is 111972953. The next prime is 111973007. The reversal of 111972963 is 369279111.

It is a happy number.

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

It is not a de Polignac number, because 111972963 - 2¹⁰ = 111971939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111972953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18662158 + ... + 18662163.

It is an arithmetic number, because the mean of its divisors is an integer number (37324322).

Almost surely, 2^111972963 is an apocalyptic number.

111972963 is a deficient number, since it is larger than the sum of its proper divisors (37324325).

111972963 is an equidigital number, since it uses as much as digits as its factorization.

111972963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37324324.

The product of its digits is 20412, while the sum is 39.

The square root of 111972963 is about 10581.7277889766. The cubic root of 111972963 is about 481.9896622037.

The spelling of 111972963 in words is "one hundred eleven million, nine hundred seventy-two thousand, nine hundred sixty-three".