12945822 has 16 divisors (see below), whose sum is σ = 25926912. Its totient is φ = 4309400.

The previous prime is 12945811. The next prime is 12945841. The reversal of 12945822 is 22854921.

12945822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7963 + ... + 9449.

It is an arithmetic number, because the mean of its divisors is an integer number (1620432).

Almost surely, 2^12945822 is an apocalyptic number.

12945822 is an abundant number, since it is smaller than the sum of its proper divisors (12981090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12945822 is a wasteful number, since it uses less digits than its factorization.

12945822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943.

The product of its digits is 11520, while the sum is 33.

The square root of 12945822 is about 3598.0302944806. The cubic root of 12945822 is about 234.8063713618.

Subtracting 12945822 from its reverse (22854921), we obtain a palindrome (9909099).

The spelling of 12945822 in words is "twelve million, nine hundred forty-five thousand, eight hundred twenty-two".