12881825 has 24 divisors (see below), whose sum is σ = 17603040. Its totient is φ = 9273600.

The previous prime is 12881789. The next prime is 12881839. The reversal of 12881825 is 52818821.

It is not a de Polignac number, because 12881825 - 2¹⁸ = 12619681 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 38057 + ... + 38393.

It is an arithmetic number, because the mean of its divisors is an integer number (733460).

Almost surely, 2^12881825 is an apocalyptic number.

It is an amenable number.

12881825 is a deficient number, since it is larger than the sum of its proper divisors (4721215).

12881825 is a wasteful number, since it uses less digits than its factorization.

12881825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 492 counting only the distinct ones).

The product of its digits is 10240, while the sum is 35.

The square root of 12881825 is about 3589.1259381638. The cubic root of 12881825 is about 234.4188143273.

It can be divided in two parts, 1288 and 1825, that added together give a palindrome (3113).

The spelling of 12881825 in words is "twelve million, eight hundred eighty-one thousand, eight hundred twenty-five".