23270189 has 2 divisors, whose sum is σ = 23270190. Its totient is φ = 23270188.

The previous prime is 23270173. The next prime is 23270197. The reversal of 23270189 is 98107232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22250089 + 1020100 = 4717^2 + 1010^2 .

It is a cyclic number.

It is not a de Polignac number, because 23270189 - 2⁴ = 23270173 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23270389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11635094 + 11635095.

It is an arithmetic number, because the mean of its divisors is an integer number (11635095).

Almost surely, 2^23270189 is an apocalyptic number.

It is an amenable number.

23270189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23270189 is an equidigital number, since it uses as much as digits as its factorization.

23270189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 23270189 is about 4823.9184280002. The cubic root of 23270189 is about 285.4959621072.

The spelling of 23270189 in words is "twenty-three million, two hundred seventy thousand, one hundred eighty-nine".