12816125 has 32 divisors (see below), whose sum is σ = 18590208. Its totient is φ = 8640000.

The previous prime is 12816109. The next prime is 12816131. The reversal of 12816125 is 52161821.

It is not a de Polignac number, because 12816125 - 2⁴ = 12816109 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12816094 and 12816103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84800 + ... + 84950.

It is an arithmetic number, because the mean of its divisors is an integer number (580944).

Almost surely, 2^12816125 is an apocalyptic number.

It is an amenable number.

12816125 is a deficient number, since it is larger than the sum of its proper divisors (5774083).

12816125 is an equidigital number, since it uses as much as digits as its factorization.

12816125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 260 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 12816125 is about 3579.9615919727. The cubic root of 12816125 is about 234.0196065584.

Adding to 12816125 its reverse (52161821), we get a palindrome (64977946).

The spelling of 12816125 in words is "twelve million, eight hundred sixteen thousand, one hundred twenty-five".