230443009 has 2 divisors, whose sum is σ = 230443010. Its totient is φ = 230443008.

The previous prime is 230442941. The next prime is 230443027. The reversal of 230443009 is 900344032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230432400 + 10609 = 15180^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 230443009 - 2⁷ = 230442881 is a prime.

It is not a weakly prime, because it can be changed into another prime (230443069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115221504 + 115221505.

It is an arithmetic number, because the mean of its divisors is an integer number (115221505).

Almost surely, 2^230443009 is an apocalyptic number.

It is an amenable number.

230443009 is a deficient number, since it is larger than the sum of its proper divisors (1).

230443009 is an equidigital number, since it uses as much as digits as its factorization.

230443009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 230443009 is about 15180.3494360308. The cubic root of 230443009 is about 613.0856896091.

The spelling of 230443009 in words is "two hundred thirty million, four hundred forty-three thousand, nine".