23143199 has 2 divisors, whose sum is σ = 23143200. Its totient is φ = 23143198.

The previous prime is 23143181. The next prime is 23143259. The reversal of 23143199 is 99134132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23143199 - 2⁸ = 23142943 is a 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 (23143699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11571599 + 11571600.

It is an arithmetic number, because the mean of its divisors is an integer number (11571600).

Almost surely, 2^23143199 is an apocalyptic number.

23143199 is a deficient number, since it is larger than the sum of its proper divisors (1).

23143199 is an equidigital number, since it uses as much as digits as its factorization.

23143199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 23143199 is about 4810.7378851898. The cubic root of 23143199 is about 284.9756786468.

The spelling of 23143199 in words is "twenty-three million, one hundred forty-three thousand, one hundred ninety-nine".