1104491 has 2 divisors, whose sum is σ = 1104492.
Its totient is φ = 1104490.
The previous prime is 1104479. The next prime is 1104511. The reversal of 1104491 is 1944011.
It is an a-pointer prime, because the next prime (1104511) can be obtained adding 1104491 to its sum of digits (20).
It is a weak prime.
It is an emirp because it is prime and its reverse (1944011) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1104491 - 26 = 1104427 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (1104431) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552245 + 552246.
It is an arithmetic number, because the mean of its divisors is an integer number (552246).
21104491 is an apocalyptic number.
1104491 is a deficient number, since it is larger than the sum of its proper divisors (1).
1104491 is an equidigital number, since it uses as much as digits as its factorization.
1104491 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 144, while the sum is 20.
The square root of 1104491 is about 1050.9476675839.
The cubic root of 1104491 is about 103.3683047316.
The spelling of 1104491 in words is "one million, one hundred four thousand, four hundred ninety-one".