12810025 has 12 divisors (see below), whose sum is σ = 16433100. Its totient is φ = 9894080.

The previous prime is 12810023. The next prime is 12810041. The reversal of 12810025 is 52001821.

It can be written as a sum of positive squares in 6 ways, for example, as 1058841 + 11751184 = 1029^2 + 3428^2 .

It is not a de Polignac number, because 12810025 - 2¹ = 12810023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12809984 and 12810011.

It is not an unprimeable number, because it can be changed into a prime (12810023) by changing a digit.

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, 8110 + ... + 9559.

It is an arithmetic number, because the mean of its divisors is an integer number (1369425).

Almost surely, 2^12810025 is an apocalyptic number.

It is an amenable number.

12810025 is a deficient number, since it is larger than the sum of its proper divisors (3623075).

12810025 is a wasteful number, since it uses less digits than its factorization.

12810025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17708 (or 17703 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 12810025 is about 3579.1095261252. The cubic root of 12810025 is about 233.9824724495.

Adding to 12810025 its reverse (52001821), we get a palindrome (64811846).

It can be divided in two parts, 128 and 10025, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 12810025 in words is "twelve million, eight hundred ten thousand, twenty-five".