12771013 has 2 divisors, whose sum is σ = 12771014. Its totient is φ = 12771012.

The previous prime is 12771007. The next prime is 12771019. The reversal of 12771013 is 31017721.

It is a balanced prime because it is at equal distance from previous prime (12771007) and next prime (12771019).

It can be written as a sum of positive squares in only one way, i.e., 12723489 + 47524 = 3567^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 12771013 - 2¹⁷ = 12639941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12771019) 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, 6385506 + 6385507.

It is an arithmetic number, because the mean of its divisors is an integer number (6385507).

Almost surely, 2^12771013 is an apocalyptic number.

It is an amenable number.

12771013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12771013 is an equidigital number, since it uses as much as digits as its factorization.

12771013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 12771013 is about 3573.6554114800. The cubic root of 12771013 is about 233.7447053811.

Adding to 12771013 its reverse (31017721), we get a palindrome (43788734).

The spelling of 12771013 in words is "twelve million, seven hundred seventy-one thousand, thirteen".