12645226 has 12 divisors (see below), whose sum is σ = 20849346. Its totient is φ = 5747720.

The previous prime is 12645197. The next prime is 12645257. The reversal of 12645226 is 62254621.

12645226 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 only one way, i.e., 11553201 + 1092025 = 3399^2 + 1045^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12645194 and 12645203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25885 + ... + 26368.

Almost surely, 2^12645226 is an apocalyptic number.

12645226 is a deficient number, since it is larger than the sum of its proper divisors (8204120).

12645226 is a wasteful number, since it uses less digits than its factorization.

12645226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52277 (or 52266 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 12645226 is about 3556.0126546456. The cubic root of 12645226 is about 232.9747558104.

Adding to 12645226 its reverse (62254621), we get a palindrome (74899847).

The spelling of 12645226 in words is "twelve million, six hundred forty-five thousand, two hundred twenty-six".