104212291 has 2 divisors, whose sum is σ = 104212292. Its totient is φ = 104212290.

The previous prime is 104212253. The next prime is 104212319. The reversal of 104212291 is 192212401.

It is a strong prime.

It is an emirp because it is prime and its reverse (192212401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104212291 - 2¹⁹ = 103688003 is a prime.

It is not a weakly prime, because it can be changed into another prime (104212991) 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, 52106145 + 52106146.

It is an arithmetic number, because the mean of its divisors is an integer number (52106146).

Almost surely, 2^104212291 is an apocalyptic number.

104212291 is a deficient number, since it is larger than the sum of its proper divisors (1).

104212291 is an equidigital number, since it uses as much as digits as its factorization.

104212291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 104212291 is about 10208.4421436378. The cubic root of 104212291 is about 470.5866990400.

Adding to 104212291 its reverse (192212401), we get a palindrome (296424692).

The spelling of 104212291 in words is "one hundred four million, two hundred twelve thousand, two hundred ninety-one".