23112189 has 16 divisors (see below), whose sum is σ = 36043200. Its totient is φ = 14596848.

The previous prime is 23112179. The next prime is 23112191. The reversal of 23112189 is 98121132.

It is not a de Polignac number, because 23112189 - 2⁵ = 23112157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22014 + ... + 23039.

It is an arithmetic number, because the mean of its divisors is an integer number (2252700).

Almost surely, 2^23112189 is an apocalyptic number.

It is an amenable number.

23112189 is a deficient number, since it is larger than the sum of its proper divisors (12931011).

23112189 is a wasteful number, since it uses less digits than its factorization.

23112189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45081 (or 45075 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 23112189 is about 4807.5138065324. The cubic root of 23112189 is about 284.8483403629.

The spelling of 23112189 in words is "twenty-three million, one hundred twelve thousand, one hundred eighty-nine".