12128876 has 24 divisors (see below), whose sum is σ = 21751296. Its totient is φ = 5916240.

The previous prime is 12128869. The next prime is 12128887. The reversal of 12128876 is 67882121.

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 7 ways as a sum of consecutive naturals, for example, 44621 + ... + 44891.

It is an arithmetic number, because the mean of its divisors is an integer number (906304).

Almost surely, 2^12128876 is an apocalyptic number.

It is an amenable number.

12128876 is a deficient number, since it is larger than the sum of its proper divisors (9622420).

12128876 is a wasteful number, since it uses less digits than its factorization.

12128876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 507 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 12128876 is about 3482.6535859887. The cubic root of 12128876 is about 229.7595218108.

The spelling of 12128876 in words is "twelve million, one hundred twenty-eight thousand, eight hundred seventy-six".