304169 has 2 divisors, whose sum is σ = 304170. Its totient is φ = 304168.

The previous prime is 304163. The next prime is 304193. The reversal of 304169 is 961403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262144 + 42025 = 512^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 304169 - 2⁴ = 304153 is a prime.

It is a super-2 number, since 2×304169² = 185037561122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (304163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152084 + 152085.

It is an arithmetic number, because the mean of its divisors is an integer number (152085).

2³⁰⁴¹⁶⁹ is an apocalyptic number.

It is an amenable number.

304169 is a deficient number, since it is larger than the sum of its proper divisors (1).

304169 is an equidigital number, since it uses as much as digits as its factorization.

304169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 304169 is about 551.5151856477. The cubic root of 304169 is about 67.2519657805.

The spelling of 304169 in words is "three hundred four thousand, one hundred sixty-nine".