3131057 has 2 divisors, whose sum is σ = 3131058. Its totient is φ = 3131056.

The previous prime is 3131053. The next prime is 3131087. The reversal of 3131057 is 7501313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2217121 + 913936 = 1489^2 + 956^2 .

It is an emirp because it is prime and its reverse (7501313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3131057 - 2² = 3131053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3131053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565528 + 1565529.

It is an arithmetic number, because the mean of its divisors is an integer number (1565529).

Almost surely, 2^3131057 is an apocalyptic number.

It is an amenable number.

3131057 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131057 is an equidigital number, since it uses as much as digits as its factorization.

3131057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 3131057 is about 1769.4793019417. The cubic root of 3131057 is about 146.2952834182.

The spelling of 3131057 in words is "three million, one hundred thirty-one thousand, fifty-seven".