23541191 has 2 divisors, whose sum is σ = 23541192. Its totient is φ = 23541190.

The previous prime is 23541173. The next prime is 23541211. The reversal of 23541191 is 19114532.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23541191 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23541191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23541491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11770595 + 11770596.

It is an arithmetic number, because the mean of its divisors is an integer number (11770596).

Almost surely, 2^23541191 is an apocalyptic number.

23541191 is a deficient number, since it is larger than the sum of its proper divisors (1).

23541191 is an equidigital number, since it uses as much as digits as its factorization.

23541191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 23541191 is about 4851.9265245879. The cubic root of 23541191 is about 286.5999720151.

It can be divided in two parts, 23541 and 191, that added together give a palindrome (23732).

The spelling of 23541191 in words is "twenty-three million, five hundred forty-one thousand, one hundred ninety-one".