12869128 has 16 divisors (see below), whose sum is σ = 24193260. Its totient is φ = 6417600.

The previous prime is 12869111. The next prime is 12869141. The reversal of 12869128 is 82196821.

It can be written as a sum of positive squares in 2 ways, for example, as 12659364 + 209764 = 3558^2 + 458^2 .

It is a super-2 number, since 2×12869128² = 331228910960768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458 + ... + 5278.

Almost surely, 2^12869128 is an apocalyptic number.

It is an amenable number.

12869128 is a deficient number, since it is larger than the sum of its proper divisors (11324132).

12869128 is a wasteful number, since it uses less digits than its factorization.

12869128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248 (or 4244 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 12869128 is about 3587.3566870329. The cubic root of 12869128 is about 234.3417705305.

The spelling of 12869128 in words is "twelve million, eight hundred sixty-nine thousand, one hundred twenty-eight".