23945291 has 2 divisors, whose sum is σ = 23945292. Its totient is φ = 23945290.

The previous prime is 23945287. The next prime is 23945321. The reversal of 23945291 is 19254932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23945291 - 2² = 23945287 is a prime.

It is a super-2 number, since 2×23945291² = 1146753922149362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23945261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11972645 + 11972646.

It is an arithmetic number, because the mean of its divisors is an integer number (11972646).

Almost surely, 2^23945291 is an apocalyptic number.

23945291 is a deficient number, since it is larger than the sum of its proper divisors (1).

23945291 is an equidigital number, since it uses as much as digits as its factorization.

23945291 is an evil number, because the sum of its binary digits is even.

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

The square root of 23945291 is about 4893.3925859265. The cubic root of 23945291 is about 288.2305694426.

The spelling of 23945291 in words is "twenty-three million, nine hundred forty-five thousand, two hundred ninety-one".