12871266 has 16 divisors (see below), whose sum is σ = 25824288. Its totient is φ = 4276800.

The previous prime is 12871259. The next prime is 12871291. The reversal of 12871266 is 66217821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255 + ... + 5226.

It is an arithmetic number, because the mean of its divisors is an integer number (1614018).

Almost surely, 2^12871266 is an apocalyptic number.

12871266 is an abundant number, since it is smaller than the sum of its proper divisors (12953022).

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

12871266 is a wasteful number, since it uses less digits than its factorization.

12871266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6817.

The product of its digits is 8064, while the sum is 33.

The square root of 12871266 is about 3587.6546656555. The cubic root of 12871266 is about 234.3547471922.

It can be divided in two parts, 128712 and 66, that added together give a triangular number (128778 = T₅₀₇).

The spelling of 12871266 in words is "twelve million, eight hundred seventy-one thousand, two hundred sixty-six".