23275309 has 2 divisors, whose sum is σ = 23275310. Its totient is φ = 23275308.

The previous prime is 23275297. The next prime is 23275339. The reversal of 23275309 is 90357232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 9474084 = 3715^2 + 3078^2 .

It is a cyclic number.

It is not a de Polignac number, because 23275309 - 2⁵ = 23275277 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 (23275339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11637654 + 11637655.

It is an arithmetic number, because the mean of its divisors is an integer number (11637655).

Almost surely, 2^23275309 is an apocalyptic number.

It is an amenable number.

23275309 is a deficient number, since it is larger than the sum of its proper divisors (1).

23275309 is an equidigital number, since it uses as much as digits as its factorization.

23275309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 23275309 is about 4824.4490877198. The cubic root of 23275309 is about 285.5168992259.

The spelling of 23275309 in words is "twenty-three million, two hundred seventy-five thousand, three hundred nine".