12271273 has 4 divisors (see below), whose sum is σ = 14024320. Its totient is φ = 10518228.

The previous prime is 12271261. The next prime is 12271279. The reversal of 12271273 is 37217221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12271273 - 2¹⁷ = 12140201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12271279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876513 + ... + 876526.

It is an arithmetic number, because the mean of its divisors is an integer number (3506080).

Almost surely, 2^12271273 is an apocalyptic number.

It is an amenable number.

12271273 is a deficient number, since it is larger than the sum of its proper divisors (1753047).

12271273 is an equidigital number, since it uses as much as digits as its factorization.

12271273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753046.

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

The square root of 12271273 is about 3503.0376817842. The cubic root of 12271273 is about 230.6551766341.

Adding to 12271273 its reverse (37217221), we get a palindrome (49488494).

It can be divided in two parts, 12271 and 273, that added together give a square (12544 = 112²).

The spelling of 12271273 in words is "twelve million, two hundred seventy-one thousand, two hundred seventy-three".