23252309 has 2 divisors, whose sum is σ = 23252310. Its totient is φ = 23252308.

The previous prime is 23252269. The next prime is 23252329. The reversal of 23252309 is 90325232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23251684 + 625 = 4822^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 23252309 - 2¹² = 23248213 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23252329) 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, 11626154 + 11626155.

It is an arithmetic number, because the mean of its divisors is an integer number (11626155).

Almost surely, 2^23252309 is an apocalyptic number.

It is an amenable number.

23252309 is a deficient number, since it is larger than the sum of its proper divisors (1).

23252309 is an equidigital number, since it uses as much as digits as its factorization.

23252309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 23252309 is about 4822.0648066985. The cubic root of 23252309 is about 285.4228216644.

The spelling of 23252309 in words is "twenty-three million, two hundred fifty-two thousand, three hundred nine".