111284045 has 16 divisors (see below), whose sum is σ = 144002880. Its totient is φ = 82281600.

The previous prime is 111284029. The next prime is 111284053. The reversal of 111284045 is 540482111.

It is not a de Polignac number, because 111284045 - 2⁴ = 111284029 is a prime.

It is a Curzon number.

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, 10391 + ... + 18180.

It is an arithmetic number, because the mean of its divisors is an integer number (9000180).

Almost surely, 2^111284045 is an apocalyptic number.

It is an amenable number.

111284045 is a deficient number, since it is larger than the sum of its proper divisors (32718835).

111284045 is a wasteful number, since it uses less digits than its factorization.

111284045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28636.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 111284045 is about 10549.1253191912. The cubic root of 111284045 is about 480.9991413115. Note that the first 3 decimals are identical.

The spelling of 111284045 in words is "one hundred eleven million, two hundred eighty-four thousand, forty-five".