12659216 has 10 divisors (see below), whose sum is σ = 24527262. Its totient is φ = 6329600.

The previous prime is 12659173. The next prime is 12659219. The reversal of 12659216 is 61295621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10863616 + 1795600 = 3296^2 + 1340^2 .

It is not an unprimeable number, because it can be changed into a prime (12659219) by changing a digit.

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 as a sum of consecutive naturals, namely, 395585 + ... + 395616.

Almost surely, 2^12659216 is an apocalyptic number.

12659216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12659216 is a deficient number, since it is larger than the sum of its proper divisors (11868046).

12659216 is an equidigital number, since it uses as much as digits as its factorization.

12659216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791209 (or 791203 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 12659216 is about 3557.9792017380. The cubic root of 12659216 is about 233.0606410710.

The spelling of 12659216 in words is "twelve million, six hundred fifty-nine thousand, two hundred sixteen".