12842271 has 48 divisors (see below), whose sum is σ = 21621600. Its totient is φ = 7278336.

The previous prime is 12842237. The next prime is 12842279. The reversal of 12842271 is 17224821.

It is not a de Polignac number, because 12842271 - 2¹⁹ = 12317983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12842279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117765 + ... + 117873.

It is an arithmetic number, because the mean of its divisors is an integer number (450450).

Almost surely, 2^12842271 is an apocalyptic number.

12842271 is a deficient number, since it is larger than the sum of its proper divisors (8779329).

12842271 is a wasteful number, since it uses less digits than its factorization.

12842271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 197 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 12842271 is about 3583.6114465717. The cubic root of 12842271 is about 234.1786385192.

The spelling of 12842271 in words is "twelve million, eight hundred forty-two thousand, two hundred seventy-one".