230456257 has 2 divisors, whose sum is σ = 230456258. Its totient is φ = 230456256.

The previous prime is 230456179. The next prime is 230456293. The reversal of 230456257 is 752654032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228493456 + 1962801 = 15116^2 + 1401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230456257 is a prime.

It is a super-2 number, since 2×230456257² = 106220172780900098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230456357) 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, 115228128 + 115228129.

It is an arithmetic number, because the mean of its divisors is an integer number (115228129).

Almost surely, 2^230456257 is an apocalyptic number.

It is an amenable number.

230456257 is a deficient number, since it is larger than the sum of its proper divisors (1).

230456257 is an equidigital number, since it uses as much as digits as its factorization.

230456257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 230456257 is about 15180.7857833513. The cubic root of 230456257 is about 613.0974379999.

The spelling of 230456257 in words is "two hundred thirty million, four hundred fifty-six thousand, two hundred fifty-seven".