3131369 has 2 divisors, whose sum is σ = 3131370. Its totient is φ = 3131368.

The previous prime is 3131357. The next prime is 3131377. The reversal of 3131369 is 9631313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2755600 + 375769 = 1660^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131369 - 2⁴ = 3131353 is a prime.

It is a super-2 number, since 2×3131369² = 19610943628322, which contains 22 as substring.

It is a Chen prime.

It is a congruent 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, 1565684 + 1565685.

It is an arithmetic number, because the mean of its divisors is an integer number (1565685).

Almost surely, 2^3131369 is an apocalyptic number.

It is an amenable number.

3131369 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131369 is an equidigital number, since it uses as much as digits as its factorization.

3131369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 26.

The square root of 3131369 is about 1769.5674612741. The cubic root of 3131369 is about 146.3001425454.

The spelling of 3131369 in words is "three million, one hundred thirty-one thousand, three hundred sixty-nine".