321169 has 2 divisors, whose sum is σ = 321170. Its totient is φ = 321168.

The previous prime is 321163. The next prime is 321187. The reversal of 321169 is 961123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313600 + 7569 = 560^2 + 87^2 .

It is an emirp because it is prime and its reverse (961123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321169 - 2⁹ = 320657 is a prime.

It is a super-2 number, since 2×321169² = 206299053122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160584 + 160585.

It is an arithmetic number, because the mean of its divisors is an integer number (160585).

2³²¹¹⁶⁹ is an apocalyptic number.

It is an amenable number.

321169 is a deficient number, since it is larger than the sum of its proper divisors (1).

321169 is an equidigital number, since it uses as much as digits as its factorization.

321169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 22.

The square root of 321169 is about 566.7177427962. The cubic root of 321169 is about 68.4822267278.

The spelling of 321169 in words is "three hundred twenty-one thousand, one hundred sixty-nine".