23251279 has 2 divisors, whose sum is σ = 23251280. Its totient is φ = 23251278.

The previous prime is 23251253. The next prime is 23251313. The reversal of 23251279 is 97215232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23251279 - 2¹¹ = 23249231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23251279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23251379) 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, 11625639 + 11625640.

It is an arithmetic number, because the mean of its divisors is an integer number (11625640).

Almost surely, 2^23251279 is an apocalyptic number.

23251279 is a deficient number, since it is larger than the sum of its proper divisors (1).

23251279 is an equidigital number, since it uses as much as digits as its factorization.

23251279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 23251279 is about 4821.9580047943. The cubic root of 23251279 is about 285.4186071748.

The spelling of 23251279 in words is "twenty-three million, two hundred fifty-one thousand, two hundred seventy-nine".