12290417 has 2 divisors, whose sum is σ = 12290418. Its totient is φ = 12290416.

The previous prime is 12290381. The next prime is 12290423. The reversal of 12290417 is 71409221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12117361 + 173056 = 3481^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 12290417 - 2¹⁰ = 12289393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12290437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145208 + 6145209.

It is an arithmetic number, because the mean of its divisors is an integer number (6145209).

Almost surely, 2^12290417 is an apocalyptic number.

It is an amenable number.

12290417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290417 is an equidigital number, since it uses as much as digits as its factorization.

12290417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12290417 is about 3505.7691024938. The cubic root of 12290417 is about 230.7750601063.

Adding to 12290417 its reverse (71409221), we get a palindrome (83699638).

The spelling of 12290417 in words is "twelve million, two hundred ninety thousand, four hundred seventeen".