3131339 has 2 divisors, whose sum is σ = 3131340. Its totient is φ = 3131338.

The previous prime is 3131329. The next prime is 3131351. The reversal of 3131339 is 9331313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3131339 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3131309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565669 + 1565670.

It is an arithmetic number, because the mean of its divisors is an integer number (1565670).

Almost surely, 2^3131339 is an apocalyptic number.

3131339 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131339 is an equidigital number, since it uses as much as digits as its factorization.

3131339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729, while the sum is 23.

The square root of 3131339 is about 1769.5589846061. The cubic root of 3131339 is about 146.2996753356.

The spelling of 3131339 in words is "three million, one hundred thirty-one thousand, three hundred thirty-nine".