12645441 has 12 divisors (see below), whose sum is σ = 18354960. Its totient is φ = 8389080.

The previous prime is 12645439. The next prime is 12645449. The reversal of 12645441 is 14454621.

12645441 is a `hidden beast` number, since 12 + 645 + 4 + 4 + 1 = 666.

12645441 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12645441 - 2¹ = 12645439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12645449) 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, 1431 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (1529580).

Almost surely, 2^12645441 is an apocalyptic number.

It is an amenable number.

12645441 is a deficient number, since it is larger than the sum of its proper divisors (5709519).

12645441 is a wasteful number, since it uses less digits than its factorization.

12645441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876 (or 6873 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 12645441 is about 3556.0428850057. The cubic root of 12645441 is about 232.9760761845.

The spelling of 12645441 in words is "twelve million, six hundred forty-five thousand, four hundred forty-one".