23144399 has 2 divisors, whose sum is σ = 23144400. Its totient is φ = 23144398.

The previous prime is 23144389. The next prime is 23144419. The reversal of 23144399 is 99344132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23144399 - 2²⁰ = 22095823 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23144339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572199 + 11572200.

It is an arithmetic number, because the mean of its divisors is an integer number (11572200).

Almost surely, 2^23144399 is an apocalyptic number.

23144399 is a deficient number, since it is larger than the sum of its proper divisors (1).

23144399 is an equidigital number, since it uses as much as digits as its factorization.

23144399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 23144399 is about 4810.8626045648. The cubic root of 23144399 is about 284.9806039945.

The spelling of 23144399 in words is "twenty-three million, one hundred forty-four thousand, three hundred ninety-nine".