23081791 has 2 divisors, whose sum is σ = 23081792. Its totient is φ = 23081790.

The previous prime is 23081783. The next prime is 23081819. The reversal of 23081791 is 19718032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23081791 - 2³ = 23081783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23081711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11540895 + 11540896.

It is an arithmetic number, because the mean of its divisors is an integer number (11540896).

Almost surely, 2^23081791 is an apocalyptic number.

23081791 is a deficient number, since it is larger than the sum of its proper divisors (1).

23081791 is an equidigital number, since it uses as much as digits as its factorization.

23081791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 23081791 is about 4804.3512569337. The cubic root of 23081791 is about 284.7234045731.

The spelling of 23081791 in words is "twenty-three million, eighty-one thousand, seven hundred ninety-one".