12771272 has 16 divisors (see below), whose sum is σ = 24304560. Its totient is φ = 6290064.

The previous prime is 12771271. The next prime is 12771307. The reversal of 12771272 is 27217721.

It is not an unprimeable number, because it can be changed into a prime (12771271) 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, 11378 + ... + 12449.

It is an arithmetic number, because the mean of its divisors is an integer number (1519035).

Almost surely, 2^12771272 is an apocalyptic number.

It is an amenable number.

12771272 is a deficient number, since it is larger than the sum of its proper divisors (11533288).

12771272 is a wasteful number, since it uses less digits than its factorization.

12771272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23900 (or 23896 counting only the distinct ones).

The product of its digits is 2744, while the sum is 29.

The square root of 12771272 is about 3573.6916487017. The cubic root of 12771272 is about 233.7462855082.

Adding to 12771272 its reverse (27217721), we get a palindrome (39988993).

The spelling of 12771272 in words is "twelve million, seven hundred seventy-one thousand, two hundred seventy-two".