232097309 has 2 divisors, whose sum is σ = 232097310. Its totient is φ = 232097308.

The previous prime is 232097287. The next prime is 232097321. The reversal of 232097309 is 903790232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230128900 + 1968409 = 15170^2 + 1403^2 .

It is a cyclic number.

It is not a de Polignac number, because 232097309 - 2⁸ = 232097053 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 (232097329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116048654 + 116048655.

It is an arithmetic number, because the mean of its divisors is an integer number (116048655).

Almost surely, 2^232097309 is an apocalyptic number.

It is an amenable number.

232097309 is a deficient number, since it is larger than the sum of its proper divisors (1).

232097309 is an equidigital number, since it uses as much as digits as its factorization.

232097309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 232097309 is about 15234.7402012637. The cubic root of 232097309 is about 614.5492623467.

The spelling of 232097309 in words is "two hundred thirty-two million, ninety-seven thousand, three hundred nine".