104191559 has 2 divisors, whose sum is σ = 104191560. Its totient is φ = 104191558.

The previous prime is 104191553. The next prime is 104191561. The reversal of 104191559 is 955191401.

It is a strong prime.

It is an emirp because it is prime and its reverse (955191401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104191559 - 2⁴ = 104191543 is a prime.

Together with 104191561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104191553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52095779 + 52095780.

It is an arithmetic number, because the mean of its divisors is an integer number (52095780).

Almost surely, 2^104191559 is an apocalyptic number.

104191559 is a deficient number, since it is larger than the sum of its proper divisors (1).

104191559 is an equidigital number, since it uses as much as digits as its factorization.

104191559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 35.

The square root of 104191559 is about 10207.4266590557. The cubic root of 104191559 is about 470.5554907875. Note that the first 3 decimals are identical.

The spelling of 104191559 in words is "one hundred four million, one hundred ninety-one thousand, five hundred fifty-nine".