12831757 has 2 divisors, whose sum is σ = 12831758. Its totient is φ = 12831756.

The previous prime is 12831743. The next prime is 12831781. The reversal of 12831757 is 75713821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11634921 + 1196836 = 3411^2 + 1094^2 .

It is an emirp because it is prime and its reverse (75713821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12831757 - 2¹¹ = 12829709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12831457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6415878 + 6415879.

It is an arithmetic number, because the mean of its divisors is an integer number (6415879).

Almost surely, 2^12831757 is an apocalyptic number.

It is an amenable number.

12831757 is a deficient number, since it is larger than the sum of its proper divisors (1).

12831757 is an equidigital number, since it uses as much as digits as its factorization.

12831757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 34.

The square root of 12831757 is about 3582.1441902860. The cubic root of 12831757 is about 234.1147135214.

The spelling of 12831757 in words is "twelve million, eight hundred thirty-one thousand, seven hundred fifty-seven".