12723271 has 12 divisors (see below), whose sum is σ = 14191632. Its totient is φ = 11396000.

The previous prime is 12723253. The next prime is 12723287. The reversal of 12723271 is 17232721.

It is not a de Polignac number, because 12723271 - 2⁵ = 12723239 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 (12723211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7851 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (1182636).

Almost surely, 2^12723271 is an apocalyptic number.

12723271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12723271 is a deficient number, since it is larger than the sum of its proper divisors (1468361).

12723271 is a wasteful number, since it uses less digits than its factorization.

12723271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1563 counting only the distinct ones).

The product of its digits is 1176, while the sum is 25.

The square root of 12723271 is about 3566.9694419773. The cubic root of 12723271 is about 233.4530716506.

Adding to 12723271 its reverse (17232721), we get a palindrome (29955992).

It can be divided in two parts, 1 and 2723271, that added together give a palindrome (2723272).

The spelling of 12723271 in words is "twelve million, seven hundred twenty-three thousand, two hundred seventy-one".