230213209 has 2 divisors, whose sum is σ = 230213210. Its totient is φ = 230213208.

The previous prime is 230213197. The next prime is 230213219. The reversal of 230213209 is 902312032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158760000 + 71453209 = 12600^2 + 8453^2 .

It is a cyclic number.

It is not a de Polignac number, because 230213209 - 2¹⁷ = 230082137 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 230213209.

It is not a weakly prime, because it can be changed into another prime (230213219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115106604 + 115106605.

It is an arithmetic number, because the mean of its divisors is an integer number (115106605).

Almost surely, 2^230213209 is an apocalyptic number.

It is an amenable number.

230213209 is a deficient number, since it is larger than the sum of its proper divisors (1).

230213209 is an equidigital number, since it uses as much as digits as its factorization.

230213209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 230213209 is about 15172.7785523944. The cubic root of 230213209 is about 612.8818301684.

The spelling of 230213209 in words is "two hundred thirty million, two hundred thirteen thousand, two hundred nine".