12862945 has 4 divisors (see below), whose sum is σ = 15435540. Its totient is φ = 10290352.

The previous prime is 12862933. The next prime is 12862951. The reversal of 12862945 is 54926821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2313441 + 10549504 = 1521^2 + 3248^2 .

It is a cyclic number.

It is not a de Polignac number, because 12862945 - 2²¹ = 10765793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286290 + ... + 1286299.

It is an arithmetic number, because the mean of its divisors is an integer number (3858885).

Almost surely, 2^12862945 is an apocalyptic number.

It is an amenable number.

12862945 is a deficient number, since it is larger than the sum of its proper divisors (2572595).

12862945 is an equidigital number, since it uses as much as digits as its factorization.

12862945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572594.

The product of its digits is 34560, while the sum is 37.

The square root of 12862945 is about 3586.4948069111. The cubic root of 12862945 is about 234.3042345172.

The spelling of 12862945 in words is "twelve million, eight hundred sixty-two thousand, nine hundred forty-five".