12271369 has 4 divisors (see below), whose sum is σ = 13386960. Its totient is φ = 11155780.

The previous prime is 12271349. The next prime is 12271403. The reversal of 12271369 is 96317221.

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 a cyclic number.

It is not a de Polignac number, because 12271369 - 2¹¹ = 12269321 is a prime.

It is a super-2 number, since 2×12271369² = 301172994268322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12271369.

It is not an unprimeable number, because it can be changed into a prime (12271349) 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, 557779 + ... + 557800.

It is an arithmetic number, because the mean of its divisors is an integer number (3346740).

Almost surely, 2^12271369 is an apocalyptic number.

It is an amenable number.

12271369 is a deficient number, since it is larger than the sum of its proper divisors (1115591).

12271369 is a wasteful number, since it uses less digits than its factorization.

12271369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115590.

The product of its digits is 4536, while the sum is 31.

The square root of 12271369 is about 3503.0513841507. The cubic root of 12271369 is about 230.6557781158.

The spelling of 12271369 in words is "twelve million, two hundred seventy-one thousand, three hundred sixty-nine".