12641266 has 16 divisors (see below), whose sum is σ = 20979648. Its totient is φ = 5664400.

The previous prime is 12641263. The next prime is 12641297. The reversal of 12641266 is 66214621.

12641266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12641263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2485 + ... + 5608.

It is an arithmetic number, because the mean of its divisors is an integer number (1311228).

Almost surely, 2^12641266 is an apocalyptic number.

12641266 is a deficient number, since it is larger than the sum of its proper divisors (8338382).

12641266 is a wasteful number, since it uses less digits than its factorization.

12641266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8177.

The product of its digits is 3456, while the sum is 28.

The square root of 12641266 is about 3555.4558076286. The cubic root of 12641266 is about 232.9504336840.

Adding to 12641266 its reverse (66214621), we get a palindrome (78855887).

It can be divided in two parts, 12 and 641266, that added together give a triangular number (641278 = T₁₁₃₂).

The spelling of 12641266 in words is "twelve million, six hundred forty-one thousand, two hundred sixty-six".