230618657 has 2 divisors, whose sum is σ = 230618658. Its totient is φ = 230618656.

The previous prime is 230618639. The next prime is 230618671. The reversal of 230618657 is 756816032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158860816 + 71757841 = 12604^2 + 8471^2 .

It is a cyclic number.

It is not a de Polignac number, because 230618657 - 2⁶ = 230618593 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230618657.

It is not a weakly prime, because it can be changed into another prime (230218657) 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, 115309328 + 115309329.

It is an arithmetic number, because the mean of its divisors is an integer number (115309329).

Almost surely, 2^230618657 is an apocalyptic number.

It is an amenable number.

230618657 is a deficient number, since it is larger than the sum of its proper divisors (1).

230618657 is an equidigital number, since it uses as much as digits as its factorization.

230618657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 230618657 is about 15186.1337080904. The cubic root of 230618657 is about 613.2414185343.

The spelling of 230618657 in words is "two hundred thirty million, six hundred eighteen thousand, six hundred fifty-seven".