104003591 has 2 divisors, whose sum is σ = 104003592. Its totient is φ = 104003590.

The previous prime is 104003563. The next prime is 104003629. The reversal of 104003591 is 195300401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104003591 - 2¹⁸ = 103741447 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 (104003561) 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, 52001795 + 52001796.

It is an arithmetic number, because the mean of its divisors is an integer number (52001796).

Almost surely, 2^104003591 is an apocalyptic number.

104003591 is a deficient number, since it is larger than the sum of its proper divisors (1).

104003591 is an equidigital number, since it uses as much as digits as its factorization.

104003591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 104003591 is about 10198.2150889261. The cubic root of 104003591 is about 470.2723500734.

Adding to 104003591 its reverse (195300401), we get a palindrome (299303992).

The spelling of 104003591 in words is "one hundred four million, three thousand, five hundred ninety-one".