12352217 has 4 divisors (see below), whose sum is σ = 13078836. Its totient is φ = 11625600.

The previous prime is 12352213. The next prime is 12352243. The reversal of 12352217 is 71225321.

It is a happy number.

12352217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71225321 = 31 ⋅2297591.

It can be written as a sum of positive squares in 2 ways, for example, as 7203856 + 5148361 = 2684^2 + 2269^2 .

It is a cyclic number.

It is not a de Polignac number, because 12352217 - 2² = 12352213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12352192 and 12352201.

It is not an unprimeable number, because it can be changed into a prime (12352213) 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, 363284 + ... + 363317.

It is an arithmetic number, because the mean of its divisors is an integer number (3269709).

Almost surely, 2^12352217 is an apocalyptic number.

12352217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12352217 is a deficient number, since it is larger than the sum of its proper divisors (726619).

12352217 is an equidigital number, since it uses as much as digits as its factorization.

12352217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726618.

The product of its digits is 840, while the sum is 23.

The square root of 12352217 is about 3514.5720934418. The cubic root of 12352217 is about 231.1612162707.

Adding to 12352217 its reverse (71225321), we get a palindrome (83577538).

The spelling of 12352217 in words is "twelve million, three hundred fifty-two thousand, two hundred seventeen".