2302309 has 2 divisors, whose sum is σ = 2302310. Its totient is φ = 2302308.

The previous prime is 2302303. The next prime is 2302331. The reversal of 2302309 is 9032032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2102500 + 199809 = 1450^2 + 447^2 .

It is a cyclic number.

It is not a de Polignac number, because 2302309 - 2³ = 2302301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2302301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151154 + 1151155.

It is an arithmetic number, because the mean of its divisors is an integer number (1151155).

2^2302309 is an apocalyptic number.

It is an amenable number.

2302309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2302309 is an equidigital number, since it uses as much as digits as its factorization.

2302309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2302309 is about 1517.3361526043. The cubic root of 2302309 is about 132.0447697849.

The spelling of 2302309 in words is "two million, three hundred two thousand, three hundred nine".