12345017 has 2 divisors, whose sum is σ = 12345018. Its totient is φ = 12345016.

The previous prime is 12345001. The next prime is 12345049. The reversal of 12345017 is 71054321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6661561 + 5683456 = 2581^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 12345017 - 2⁴ = 12345001 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12344983 and 12345001.

It is not a weakly prime, because it can be changed into another prime (12345317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172508 + 6172509.

It is an arithmetic number, because the mean of its divisors is an integer number (6172509).

Almost surely, 2^12345017 is an apocalyptic number.

It is an amenable number.

12345017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12345017 is an equidigital number, since it uses as much as digits as its factorization.

12345017 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12345017 is about 3513.5476373603. The cubic root of 12345017 is about 231.1162935862.

Adding to 12345017 its reverse (71054321), we get a palindrome (83399338).

The spelling of 12345017 in words is "twelve million, three hundred forty-five thousand, seventeen".