12273271 has 4 divisors (see below), whose sum is σ = 12441472. Its totient is φ = 12105072.

The previous prime is 12273257. The next prime is 12273277. The reversal of 12273271 is 17237221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12273271 - 2⁷ = 12273143 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 (12273277) 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, 83991 + ... + 84136.

It is an arithmetic number, because the mean of its divisors is an integer number (3110368).

Almost surely, 2^12273271 is an apocalyptic number.

12273271 is a deficient number, since it is larger than the sum of its proper divisors (168201).

12273271 is an equidigital number, since it uses as much as digits as its factorization.

12273271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168200.

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

The square root of 12273271 is about 3503.3228512371. The cubic root of 12273271 is about 230.6676943257.

It can be divided in two parts, 12273 and 271, that added together give a square (12544 = 112²).

The spelling of 12273271 in words is "twelve million, two hundred seventy-three thousand, two hundred seventy-one".