230780909 has 2 divisors, whose sum is σ = 230780910. Its totient is φ = 230780908.

The previous prime is 230780903. The next prime is 230780929. The reversal of 230780909 is 909087032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182520100 + 48260809 = 13510^2 + 6947^2 .

It is a cyclic number.

It is not a de Polignac number, because 230780909 - 2⁸ = 230780653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230780903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115390454 + 115390455.

It is an arithmetic number, because the mean of its divisors is an integer number (115390455).

Almost surely, 2^230780909 is an apocalyptic number.

It is an amenable number.

230780909 is a deficient number, since it is larger than the sum of its proper divisors (1).

230780909 is an equidigital number, since it uses as much as digits as its factorization.

230780909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 230780909 is about 15191.4748790234. The cubic root of 230780909 is about 613.3852003698.

The spelling of 230780909 in words is "two hundred thirty million, seven hundred eighty thousand, nine hundred nine".