331169 has 6 divisors (see below), whose sum is σ = 340470. Its totient is φ = 322080.

The previous prime is 331159. The next prime is 331171. The reversal of 331169 is 961133.

It can be written as a sum of positive squares in 3 ways, for example, as 44944 + 286225 = 212^2 + 535^2 .

It is not a de Polignac number, because 331169 - 2⁴ = 331153 is a prime.

It is a super-2 number, since 2×331169² = 219345813122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 331169.

It is not an unprimeable number, because it can be changed into a prime (331159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3677 + ... + 3765.

It is an arithmetic number, because the mean of its divisors is an integer number (56745).

2³³¹¹⁶⁹ is an apocalyptic number.

It is an amenable number.

331169 is a deficient number, since it is larger than the sum of its proper divisors (9301).

331169 is an frugal number, since it uses more digits than its factorization.

331169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 150 counting only the distinct ones).

The product of its digits is 486, while the sum is 23.

The square root of 331169 is about 575.4728490555. The cubic root of 331169 is about 69.1857349726.

The spelling of 331169 in words is "three hundred thirty-one thousand, one hundred sixty-nine".