12771653 has 2 divisors, whose sum is σ = 12771654. Its totient is φ = 12771652.

The previous prime is 12771643. The next prime is 12771679. The reversal of 12771653 is 35617721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7745089 + 5026564 = 2783^2 + 2242^2 .

It is a cyclic number.

It is not a de Polignac number, because 12771653 - 2¹⁸ = 12509509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12771643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6385826 + 6385827.

It is an arithmetic number, because the mean of its divisors is an integer number (6385827).

Almost surely, 2^12771653 is an apocalyptic number.

It is an amenable number.

12771653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12771653 is an equidigital number, since it uses as much as digits as its factorization.

12771653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 32.

The square root of 12771653 is about 3573.7449545260. The cubic root of 12771653 is about 233.7486099034.

The spelling of 12771653 in words is "twelve million, seven hundred seventy-one thousand, six hundred fifty-three".