23251237 has 2 divisors, whose sum is σ = 23251238. Its totient is φ = 23251236.

The previous prime is 23251199. The next prime is 23251253. The reversal of 23251237 is 73215232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20061441 + 3189796 = 4479^2 + 1786^2 .

It is a cyclic number.

It is not a de Polignac number, because 23251237 - 2¹¹ = 23249189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23252237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11625618 + 11625619.

It is an arithmetic number, because the mean of its divisors is an integer number (11625619).

Almost surely, 2^23251237 is an apocalyptic number.

It is an amenable number.

23251237 is a deficient number, since it is larger than the sum of its proper divisors (1).

23251237 is an equidigital number, since it uses as much as digits as its factorization.

23251237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 25.

The square root of 23251237 is about 4821.9536497150. The cubic root of 23251237 is about 285.4184353192.

Adding to 23251237 its reverse (73215232), we get a palindrome (96466469).

The spelling of 23251237 in words is "twenty-three million, two hundred fifty-one thousand, two hundred thirty-seven".