12851272 has 16 divisors (see below), whose sum is σ = 27538560. Its totient is φ = 5507664.

The previous prime is 12851261. The next prime is 12851309. The reversal of 12851272 is 27215821.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 12851272.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114688 + ... + 114799.

It is an arithmetic number, because the mean of its divisors is an integer number (1721160).

Almost surely, 2^12851272 is an apocalyptic number.

It is an amenable number.

12851272 is an abundant number, since it is smaller than the sum of its proper divisors (14687288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12851272 is a wasteful number, since it uses less digits than its factorization.

12851272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229500 (or 229496 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 12851272 is about 3584.8670826127. The cubic root of 12851272 is about 234.2333367799.

The spelling of 12851272 in words is "twelve million, eight hundred fifty-one thousand, two hundred seventy-two".