230749657 has 2 divisors, whose sum is σ = 230749658. Its totient is φ = 230749656.

The previous prime is 230749643. The next prime is 230749669. The reversal of 230749657 is 756947032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139145616 + 91604041 = 11796^2 + 9571^2 .

It is a cyclic number.

It is not a de Polignac number, because 230749657 - 2⁷ = 230749529 is a prime.

It is not a weakly prime, because it can be changed into another prime (230749627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115374828 + 115374829.

It is an arithmetic number, because the mean of its divisors is an integer number (115374829).

Almost surely, 2^230749657 is an apocalyptic number.

It is an amenable number.

230749657 is a deficient number, since it is larger than the sum of its proper divisors (1).

230749657 is an equidigital number, since it uses as much as digits as its factorization.

230749657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 230749657 is about 15190.4462409766. The cubic root of 230749657 is about 613.3575112226.

The spelling of 230749657 in words is "two hundred thirty million, seven hundred forty-nine thousand, six hundred fifty-seven".