1104209 has 2 divisors, whose sum is σ = 1104210. Its totient is φ = 1104208.

The previous prime is 1104203. The next prime is 1104217. The reversal of 1104209 is 9024011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 73984 = 1015^2 + 272^2 .

It is an emirp because it is prime and its reverse (9024011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1104209 - 2⁴ = 1104193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1104203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552104 + 552105.

It is an arithmetic number, because the mean of its divisors is an integer number (552105).

2^1104209 is an apocalyptic number.

It is an amenable number.

1104209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1104209 is an equidigital number, since it uses as much as digits as its factorization.

1104209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1104209 is about 1050.8134943937. The cubic root of 1104209 is about 103.3595066085.

The spelling of 1104209 in words is "one million, one hundred four thousand, two hundred nine".