12271296 has 28 divisors (see below), whose sum is σ = 32468312. Its totient is φ = 4090368.

The previous prime is 12271291. The next prime is 12271313. The reversal of 12271296 is 69217221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31765 + ... + 32148.

Almost surely, 2^12271296 is an apocalyptic number.

12271296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12271296 is an abundant number, since it is smaller than the sum of its proper divisors (20197016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12271296 is an equidigital number, since it uses as much as digits as its factorization.

12271296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63928 (or 63918 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 12271296 is about 3503.0409646477. The cubic root of 12271296 is about 230.6553207394.

The spelling of 12271296 in words is "twelve million, two hundred seventy-one thousand, two hundred ninety-six".