12822147 has 24 divisors (see below), whose sum is σ = 20638800. Its totient is φ = 7616448.

The previous prime is 12822133. The next prime is 12822151. The reversal of 12822147 is 74122821.

It is not a de Polignac number, because 12822147 - 2⁶ = 12822083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12822147.

It is not an unprimeable number, because it can be changed into a prime (12822107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1504 + ... + 5282.

It is an arithmetic number, because the mean of its divisors is an integer number (859950).

Almost surely, 2^12822147 is an apocalyptic number.

12822147 is a deficient number, since it is larger than the sum of its proper divisors (7816653).

12822147 is a wasteful number, since it uses less digits than its factorization.

12822147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827 (or 3824 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 12822147 is about 3580.8025636720. The cubic root of 12822147 is about 234.0562542815.

Adding to 12822147 its reverse (74122821), we get a palindrome (86944968).

The spelling of 12822147 in words is "twelve million, eight hundred twenty-two thousand, one hundred forty-seven".