23153189 has 2 divisors, whose sum is σ = 23153190. Its totient is φ = 23153188.

The previous prime is 23153183. The next prime is 23153197. The reversal of 23153189 is 98135132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14002564 + 9150625 = 3742^2 + 3025^2 .

It is a cyclic number.

It is not a de Polignac number, because 23153189 - 2⁴ = 23153173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23153183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11576594 + 11576595.

It is an arithmetic number, because the mean of its divisors is an integer number (11576595).

Almost surely, 2^23153189 is an apocalyptic number.

It is an amenable number.

23153189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23153189 is an equidigital number, since it uses as much as digits as its factorization.

23153189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 32.

The square root of 23153189 is about 4811.7760754216. The cubic root of 23153189 is about 285.0166769763.

The spelling of 23153189 in words is "twenty-three million, one hundred fifty-three thousand, one hundred eighty-nine".