12819425 has 12 divisors (see below), whose sum is σ = 16056636. Its totient is φ = 10152000.

The previous prime is 12819419. The next prime is 12819439. The reversal of 12819425 is 52491821.

It can be written as a sum of positive squares in 6 ways, for example, as 2521744 + 10297681 = 1588^2 + 3209^2 .

It is not a de Polignac number, because 12819425 - 2¹⁰ = 12818401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12819391 and 12819400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (1338053).

Almost surely, 2^12819425 is an apocalyptic number.

It is an amenable number.

12819425 is a deficient number, since it is larger than the sum of its proper divisors (3237211).

12819425 is a wasteful number, since it uses less digits than its factorization.

12819425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188 (or 5183 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 12819425 is about 3580.4224611071. The cubic root of 12819425 is about 234.0396905913.

The spelling of 12819425 in words is "twelve million, eight hundred nineteen thousand, four hundred twenty-five".