230313509 has 2 divisors, whose sum is σ = 230313510. Its totient is φ = 230313508.

The previous prime is 230313487. The next prime is 230313511. The reversal of 230313509 is 905313032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206008609 + 24304900 = 14353^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 230313509 - 2¹² = 230309413 is a prime.

Together with 230313511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230313709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115156754 + 115156755.

It is an arithmetic number, because the mean of its divisors is an integer number (115156755).

Almost surely, 2^230313509 is an apocalyptic number.

It is an amenable number.

230313509 is a deficient number, since it is larger than the sum of its proper divisors (1).

230313509 is an equidigital number, since it uses as much as digits as its factorization.

230313509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 230313509 is about 15176.0834539087. The cubic root of 230313509 is about 612.9708246597.

The spelling of 230313509 in words is "two hundred thirty million, three hundred thirteen thousand, five hundred nine".