23244257 has 2 divisors, whose sum is σ = 23244258. Its totient is φ = 23244256.

The previous prime is 23244223. The next prime is 23244259. The reversal of 23244257 is 75244232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19989841 + 3254416 = 4471^2 + 1804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23244257 is a prime.

Together with 23244259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23244259) 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, 11622128 + 11622129.

It is an arithmetic number, because the mean of its divisors is an integer number (11622129).

Almost surely, 2^23244257 is an apocalyptic number.

It is an amenable number.

23244257 is a deficient number, since it is larger than the sum of its proper divisors (1).

23244257 is an equidigital number, since it uses as much as digits as its factorization.

23244257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 29.

The square root of 23244257 is about 4821.2298223586. The cubic root of 23244257 is about 285.3898716766.

Adding to 23244257 its reverse (75244232), we get a palindrome (98488489).

The spelling of 23244257 in words is "twenty-three million, two hundred forty-four thousand, two hundred fifty-seven".