111944445 has 16 divisors (see below), whose sum is σ = 180316800. Its totient is φ = 59301824.

The previous prime is 111944431. The next prime is 111944453. The reversal of 111944445 is 544449111.

It is a cyclic number.

It is not a de Polignac number, because 111944445 - 2¹⁸ = 111682301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22809 + ... + 27278.

It is an arithmetic number, because the mean of its divisors is an integer number (11269800).

Almost surely, 2^111944445 is an apocalyptic number.

111944445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111944445 is a deficient number, since it is larger than the sum of its proper divisors (68372355).

111944445 is a wasteful number, since it uses less digits than its factorization.

111944445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50244.

The product of its digits is 11520, while the sum is 33.

The square root of 111944445 is about 10580.3801916566. The cubic root of 111944445 is about 481.9487399790.

The spelling of 111944445 in words is "one hundred eleven million, nine hundred forty-four thousand, four hundred forty-five".