1304173 has 6 divisors (see below), whose sum is σ = 1412394. Its totient is φ = 1203696.

The previous prime is 1304167. The next prime is 1304183. The reversal of 1304173 is 3714031.

It can be written as a sum of positive squares in 3 ways, for example, as 9 + 1304164 = 3^2 + 1142^2 .

It is not a de Polignac number, because 1304173 - 2¹⁷ = 1173101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1304173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304113) 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 in 5 ways as a sum of consecutive naturals, for example, 3690 + ... + 4027.

It is an arithmetic number, because the mean of its divisors is an integer number (235399).

2^1304173 is an apocalyptic number.

1304173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1304173 is a deficient number, since it is larger than the sum of its proper divisors (108221).

1304173 is an equidigital number, since it uses as much as digits as its factorization.

1304173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743 (or 7730 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 1304173 is about 1142.0039404485. The cubic root of 1304173 is about 109.2559426134.

The spelling of 1304173 in words is "one million, three hundred four thousand, one hundred seventy-three".