23144591 has 2 divisors, whose sum is σ = 23144592. Its totient is φ = 23144590.

The previous prime is 23144567. The next prime is 23144609. The reversal of 23144591 is 19544132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23144591 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 (20144591) 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, 11572295 + 11572296.

It is an arithmetic number, because the mean of its divisors is an integer number (11572296).

Almost surely, 2^23144591 is an apocalyptic number.

23144591 is a deficient number, since it is larger than the sum of its proper divisors (1).

23144591 is an equidigital number, since it uses as much as digits as its factorization.

23144591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 23144591 is about 4810.8825593648. The cubic root of 23144591 is about 284.9813920343.

The spelling of 23144591 in words is "twenty-three million, one hundred forty-four thousand, five hundred ninety-one".