12272733 has 24 divisors (see below), whose sum is σ = 19712160. Its totient is φ = 7294560.

The previous prime is 12272719. The next prime is 12272737. The reversal of 12272733 is 33727221.

It is a happy number.

It is not a de Polignac number, because 12272733 - 2⁴ = 12272717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12272697 and 12272706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272737) 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 23 ways as a sum of consecutive naturals, for example, 4078 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (821340).

Almost surely, 2^12272733 is an apocalyptic number.

It is an amenable number.

12272733 is a deficient number, since it is larger than the sum of its proper divisors (7439427).

12272733 is a wasteful number, since it uses less digits than its factorization.

12272733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409 (or 2406 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 12272733 is about 3503.2460661506. The cubic root of 12272733 is about 230.6643238297.

Adding to 12272733 its reverse (33727221), we get a palindrome (45999954).

It can be divided in two parts, 122727 and 33, that added together give a triangular number (122760 = T₄₉₅).

The spelling of 12272733 in words is "twelve million, two hundred seventy-two thousand, seven hundred thirty-three".