230641189 has 2 divisors, whose sum is σ = 230641190. Its totient is φ = 230641188.

The previous prime is 230641181. The next prime is 230641219. The reversal of 230641189 is 981146032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143592289 + 87048900 = 11983^2 + 9330^2 .

It is a cyclic number.

It is not a de Polignac number, because 230641189 - 2³ = 230641181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230641181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115320594 + 115320595.

It is an arithmetic number, because the mean of its divisors is an integer number (115320595).

Almost surely, 2^230641189 is an apocalyptic number.

It is an amenable number.

230641189 is a deficient number, since it is larger than the sum of its proper divisors (1).

230641189 is an equidigital number, since it uses as much as digits as its factorization.

230641189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 230641189 is about 15186.8755509486. The cubic root of 230641189 is about 613.2613896067.

The spelling of 230641189 in words is "two hundred thirty million, six hundred forty-one thousand, one hundred eighty-nine".