111110189 has 4 divisors (see below), whose sum is σ = 111257724. Its totient is φ = 110962656.

The previous prime is 111110177. The next prime is 111110213. The reversal of 111110189 is 981011111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87422500 + 23687689 = 9350^2 + 4867^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110189 - 2¹⁶ = 111044653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72632 + ... + 74145.

It is an arithmetic number, because the mean of its divisors is an integer number (27814431).

Almost surely, 2^111110189 is an apocalyptic number.

It is an amenable number.

111110189 is a deficient number, since it is larger than the sum of its proper divisors (147535).

111110189 is an equidigital number, since it uses as much as digits as its factorization.

111110189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147534.

The product of its (nonzero) digits is 72, while the sum is 23.

The square root of 111110189 is about 10540.8817942333. The cubic root of 111110189 is about 480.7485268511.

The spelling of 111110189 in words is "one hundred eleven million, one hundred ten thousand, one hundred eighty-nine".