12733216 has 24 divisors (see below), whose sum is σ = 25446960. Its totient is φ = 6270528.

The previous prime is 12733213. The next prime is 12733223. The reversal of 12733216 is 61233721.

It is not an unprimeable number, because it can be changed into a prime (12733213) 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, 826 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (1060290).

Almost surely, 2^12733216 is an apocalyptic number.

12733216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12733216 is a deficient number, since it is larger than the sum of its proper divisors (12713744).

12733216 is an equidigital number, since it uses as much as digits as its factorization.

12733216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016 (or 6008 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 12733216 is about 3568.3632102128. The cubic root of 12733216 is about 233.5138811221.

Adding to 12733216 its reverse (61233721), we get a palindrome (73966937).

It can be divided in two parts, 1273 and 3216, that added together give a square (4489 = 67²).

The spelling of 12733216 in words is "twelve million, seven hundred thirty-three thousand, two hundred sixteen".