12875812 has 6 divisors (see below), whose sum is σ = 22532678. Its totient is φ = 6437904.

The previous prime is 12875803. The next prime is 12875839. The reversal of 12875812 is 21857821.

It can be written as a sum of positive squares in only one way, i.e., 9585216 + 3290596 = 3096^2 + 1814^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609473 + ... + 1609480.

Almost surely, 2^12875812 is an apocalyptic number.

It is an amenable number.

12875812 is a deficient number, since it is larger than the sum of its proper divisors (9656866).

12875812 is a wasteful number, since it uses less digits than its factorization.

12875812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218957 (or 3218955 counting only the distinct ones).

The product of its digits is 8960, while the sum is 34.

The square root of 12875812 is about 3588.2881712594. The cubic root of 12875812 is about 234.3823345142.

Subtracting 12875812 from its reverse (21857821), we obtain a square (8982009 = 2997²).

The spelling of 12875812 in words is "twelve million, eight hundred seventy-five thousand, eight hundred twelve".