12267271 has 4 divisors (see below), whose sum is σ = 12287344. Its totient is φ = 12247200.

The previous prime is 12267263. The next prime is 12267287. The reversal of 12267271 is 17276221.

12267271 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12267271 - 2³ = 12267263 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 (12267371) 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, 9090 + ... + 10351.

It is an arithmetic number, because the mean of its divisors is an integer number (3071836).

Almost surely, 2^12267271 is an apocalyptic number.

12267271 is a deficient number, since it is larger than the sum of its proper divisors (20073).

12267271 is an equidigital number, since it uses as much as digits as its factorization.

12267271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20072.

The product of its digits is 2352, while the sum is 28.

The square root of 12267271 is about 3502.4664166841. The cubic root of 12267271 is about 230.6300995731.

The spelling of 12267271 in words is "twelve million, two hundred sixty-seven thousand, two hundred seventy-one".