104009291 has 2 divisors, whose sum is σ = 104009292. Its totient is φ = 104009290.

The previous prime is 104009263. The next prime is 104009327. The reversal of 104009291 is 192900401.

It is a weak prime.

It is an emirp because it is prime and its reverse (192900401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104009291 - 2¹⁴ = 103992907 is a prime.

It is a super-2 number, since 2×104009291² = 21635865228645362, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104009291.

It is not a weakly prime, because it can be changed into another prime (104009201) 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, 52004645 + 52004646.

It is an arithmetic number, because the mean of its divisors is an integer number (52004646).

Almost surely, 2^104009291 is an apocalyptic number.

104009291 is a deficient number, since it is larger than the sum of its proper divisors (1).

104009291 is an equidigital number, since it uses as much as digits as its factorization.

104009291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 104009291 is about 10198.4945457651. The cubic root of 104009291 is about 470.2809411339.

Adding to 104009291 its reverse (192900401), we get a palindrome (296909692).

It can be divided in two parts, 10400 and 9291, that added together give a palindrome (19691).

The spelling of 104009291 in words is "one hundred four million, nine thousand, two hundred ninety-one".