230564189 has 2 divisors, whose sum is σ = 230564190. Its totient is φ = 230564188.

The previous prime is 230564179. The next prime is 230564203. The reversal of 230564189 is 981465032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186540964 + 44023225 = 13658^2 + 6635^2 .

It is a cyclic number.

It is not a de Polignac number, because 230564189 - 2²⁰ = 229515613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230564179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115282094 + 115282095.

It is an arithmetic number, because the mean of its divisors is an integer number (115282095).

Almost surely, 2^230564189 is an apocalyptic number.

It is an amenable number.

230564189 is a deficient number, since it is larger than the sum of its proper divisors (1).

230564189 is an equidigital number, since it uses as much as digits as its factorization.

230564189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 230564189 is about 15184.3402556713. The cubic root of 230564189 is about 613.1931358498.

The spelling of 230564189 in words is "two hundred thirty million, five hundred sixty-four thousand, one hundred eighty-nine".