23259149 has 2 divisors, whose sum is σ = 23259150. Its totient is φ = 23259148.

The previous prime is 23259133. The next prime is 23259167. The reversal of 23259149 is 94195232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18550249 + 4708900 = 4307^2 + 2170^2 .

It is a cyclic number.

It is not a de Polignac number, because 23259149 - 2⁴ = 23259133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23259169) 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, 11629574 + 11629575.

It is an arithmetic number, because the mean of its divisors is an integer number (11629575).

Almost surely, 2^23259149 is an apocalyptic number.

It is an amenable number.

23259149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23259149 is an equidigital number, since it uses as much as digits as its factorization.

23259149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 23259149 is about 4822.7739942900. The cubic root of 23259149 is about 285.4508059921.

The spelling of 23259149 in words is "twenty-three million, two hundred fifty-nine thousand, one hundred forty-nine".