12651272 has 16 divisors (see below), whose sum is σ = 24226560. Its totient is φ = 6190864.

The previous prime is 12651257. The next prime is 12651293. The reversal of 12651272 is 27215621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16448 + ... + 17199.

It is an arithmetic number, because the mean of its divisors is an integer number (1514160).

Almost surely, 2^12651272 is an apocalyptic number.

It is an amenable number.

12651272 is a deficient number, since it is larger than the sum of its proper divisors (11575288).

12651272 is a wasteful number, since it uses less digits than its factorization.

12651272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33700 (or 33696 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 12651272 is about 3556.8626625159. The cubic root of 12651272 is about 233.0118802541.

Adding to 12651272 its reverse (27215621), we get a palindrome (39866893).

The spelling of 12651272 in words is "twelve million, six hundred fifty-one thousand, two hundred seventy-two".