12871343 has 4 divisors (see below), whose sum is σ = 12878520. Its totient is φ = 12864168.

The previous prime is 12871333. The next prime is 12871361. The reversal of 12871343 is 34317821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34317821 = 2473 ⋅13877.

It is a cyclic number.

It is not a de Polignac number, because 12871343 - 2¹² = 12867247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (3219630).

Almost surely, 2^12871343 is an apocalyptic number.

12871343 is a deficient number, since it is larger than the sum of its proper divisors (7177).

12871343 is an equidigital number, since it uses as much as digits as its factorization.

12871343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7176.

The product of its digits is 4032, while the sum is 29.

The square root of 12871343 is about 3587.6653968842. The cubic root of 12871343 is about 234.3552145194.

The spelling of 12871343 in words is "twelve million, eight hundred seventy-one thousand, three hundred forty-three".