12708261 has 12 divisors (see below), whose sum is σ = 18546892. Its totient is φ = 8384256.

The previous prime is 12708253. The next prime is 12708271. The reversal of 12708261 is 16280721.

12708261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3744225 + 8964036 = 1935^2 + 2994^2 .

It is not a de Polignac number, because 12708261 - 2³ = 12708253 is a prime.

It is a super-2 number, since 2×12708261² = 322999795288242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12708211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6406 + ... + 8151.

Almost surely, 2^12708261 is an apocalyptic number.

It is an amenable number.

12708261 is a deficient number, since it is larger than the sum of its proper divisors (5838631).

12708261 is a wasteful number, since it uses less digits than its factorization.

12708261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14660 (or 14657 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12708261 is about 3564.8647940700. The cubic root of 12708261 is about 233.3612318116.

Adding to 12708261 its reverse (16280721), we get a palindrome (28988982).

The spelling of 12708261 in words is "twelve million, seven hundred eight thousand, two hundred sixty-one".