12361217 has 4 divisors (see below), whose sum is σ = 13484976. Its totient is φ = 11237460.

The previous prime is 12361211. The next prime is 12361241. The reversal of 12361217 is 71216321.

12361217 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12361217 - 2⁴ = 12361201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12361192 and 12361201.

It is not an unprimeable number, because it can be changed into a prime (12361211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561863 + ... + 561884.

It is an arithmetic number, because the mean of its divisors is an integer number (3371244).

Almost surely, 2^12361217 is an apocalyptic number.

It is an amenable number.

12361217 is a deficient number, since it is larger than the sum of its proper divisors (1123759).

12361217 is a wasteful number, since it uses less digits than its factorization.

12361217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123758.

The product of its digits is 504, while the sum is 23.

The square root of 12361217 is about 3515.8522437668. The cubic root of 12361217 is about 231.2173450846.

Adding to 12361217 its reverse (71216321), we get a palindrome (83577538).

The spelling of 12361217 in words is "twelve million, three hundred sixty-one thousand, two hundred seventeen".