230243239 has 2 divisors, whose sum is σ = 230243240. Its totient is φ = 230243238.

The previous prime is 230243227. The next prime is 230243243. The reversal of 230243239 is 932342032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230243239 - 2¹¹ = 230241191 is a prime.

It is a super-2 number, since 2×230243239² = 106023898210422242, which contains 22 as substring.

It is equal to p_12655171 and since 230243239 and 12655171 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230243339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115121619 + 115121620.

It is an arithmetic number, because the mean of its divisors is an integer number (115121620).

Almost surely, 2^230243239 is an apocalyptic number.

230243239 is a deficient number, since it is larger than the sum of its proper divisors (1).

230243239 is an equidigital number, since it uses as much as digits as its factorization.

230243239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 230243239 is about 15173.7681213336. The cubic root of 230243239 is about 612.9084779894.

The spelling of 230243239 in words is "two hundred thirty million, two hundred forty-three thousand, two hundred thirty-nine".