23195189 has 16 divisors (see below), whose sum is σ = 24879360. Its totient is φ = 21591360.

The previous prime is 23195177. The next prime is 23195209. The reversal of 23195189 is 98159132.

It is a cyclic number.

It is not a de Polignac number, because 23195189 - 2⁴ = 23195173 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23195119) 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, 96932 + ... + 97170.

It is an arithmetic number, because the mean of its divisors is an integer number (1554960).

Almost surely, 2^23195189 is an apocalyptic number.

It is an amenable number.

23195189 is a deficient number, since it is larger than the sum of its proper divisors (1684171).

23195189 is a wasteful number, since it uses less digits than its factorization.

23195189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its digits is 19440, while the sum is 38.

The square root of 23195189 is about 4816.1383908688. The cubic root of 23195189 is about 285.1889134289.

The spelling of 23195189 in words is "twenty-three million, one hundred ninety-five thousand, one hundred eighty-nine".