331339 has 2 divisors, whose sum is σ = 331340. Its totient is φ = 331338.

The previous prime is 331337. The next prime is 331349. The reversal of 331339 is 933133.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331339 - 2¹ = 331337 is a prime.

Together with 331337, it forms a pair of twin primes.

331339 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (331333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165669 + 165670.

It is an arithmetic number, because the mean of its divisors is an integer number (165670).

2³³¹³³⁹ is an apocalyptic number.

331339 is a deficient number, since it is larger than the sum of its proper divisors (1).

331339 is an equidigital number, since it uses as much as digits as its factorization.

331339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729, while the sum is 22.

The square root of 331339 is about 575.6205347275. The cubic root of 331339 is about 69.1975713895.

The spelling of 331339 in words is "three hundred thirty-one thousand, three hundred thirty-nine".