12771652 has 18 divisors (see below), whose sum is σ = 22645994. Its totient is φ = 6302400.

The previous prime is 12771643. The next prime is 12771653. The reversal of 12771652 is 25617721.

It can be written as a sum of positive squares in 3 ways, for example, as 4384836 + 8386816 = 2094^2 + 2896^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12771653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40648 + ... + 40960.

Almost surely, 2^12771652 is an apocalyptic number.

It is an amenable number.

12771652 is a deficient number, since it is larger than the sum of its proper divisors (9874342).

12771652 is a wasteful number, since it uses less digits than its factorization.

12771652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 416 counting only the distinct ones).

The product of its digits is 5880, while the sum is 31.

The square root of 12771652 is about 3573.7448146167. The cubic root of 12771652 is about 233.7486038027.

The spelling of 12771652 in words is "twelve million, seven hundred seventy-one thousand, six hundred fifty-two".