111645445 has 16 divisors (see below), whose sum is σ = 137479680. Its totient is φ = 86998144.

The previous prime is 111645439. The next prime is 111645467. The reversal of 111645445 is 544546111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111645445 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 53736 + ... + 55774.

It is an arithmetic number, because the mean of its divisors is an integer number (8592480).

Almost surely, 2^111645445 is an apocalyptic number.

It is an amenable number.

111645445 is a deficient number, since it is larger than the sum of its proper divisors (25834235).

111645445 is a wasteful number, since it uses less digits than its factorization.

111645445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324.

The product of its digits is 9600, while the sum is 31.

The square root of 111645445 is about 10566.2408168658. The cubic root of 111645445 is about 481.5192675389.

The spelling of 111645445 in words is "one hundred eleven million, six hundred forty-five thousand, four hundred forty-five".