230431609 has 2 divisors, whose sum is σ = 230431610. Its totient is φ = 230431608.

The previous prime is 230431589. The next prime is 230431613. The reversal of 230431609 is 906134032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229431609 + 1000000 = 15147^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 230431609 - 2⁵ = 230431577 is a prime.

It is not a weakly prime, because it can be changed into another prime (230431699) 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, 115215804 + 115215805.

It is an arithmetic number, because the mean of its divisors is an integer number (115215805).

Almost surely, 2^230431609 is an apocalyptic number.

It is an amenable number.

230431609 is a deficient number, since it is larger than the sum of its proper divisors (1).

230431609 is an equidigital number, since it uses as much as digits as its factorization.

230431609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 230431609 is about 15179.9739459592. The cubic root of 230431609 is about 613.0755796732.

The spelling of 230431609 in words is "two hundred thirty million, four hundred thirty-one thousand, six hundred nine".