230445857 has 2 divisors, whose sum is σ = 230445858. Its totient is φ = 230445856.

The previous prime is 230445833. The next prime is 230445869. The reversal of 230445857 is 758544032.

It is a happy number.

230445857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212459776 + 17986081 = 14576^2 + 4241^2 .

It is a cyclic number.

It is not a de Polignac number, because 230445857 - 2⁸ = 230445601 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 230445857.

It is not a weakly prime, because it can be changed into another prime (230445827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115222928 + 115222929.

It is an arithmetic number, because the mean of its divisors is an integer number (115222929).

Almost surely, 2^230445857 is an apocalyptic number.

It is an amenable number.

230445857 is a deficient number, since it is larger than the sum of its proper divisors (1).

230445857 is an equidigital number, since it uses as much as digits as its factorization.

230445857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 230445857 is about 15180.4432412232. The cubic root of 230445857 is about 613.0882152673.

Adding to 230445857 its reverse (758544032), we get a palindrome (988989889).

The spelling of 230445857 in words is "two hundred thirty million, four hundred forty-five thousand, eight hundred fifty-seven".