12108617 has 2 divisors, whose sum is σ = 12108618. Its totient is φ = 12108616.

The previous prime is 12108611. The next prime is 12108619. The reversal of 12108617 is 71680121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10523536 + 1585081 = 3244^2 + 1259^2 .

It is a cyclic number.

It is not a de Polignac number, because 12108617 - 2¹⁶ = 12043081 is a prime.

It is a super-3 number, since 3×12108617³ (a number of 22 digits) contains 333 as substring.

Together with 12108619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12108611) 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 as a sum of consecutive naturals, namely, 6054308 + 6054309.

It is an arithmetic number, because the mean of its divisors is an integer number (6054309).

Almost surely, 2^12108617 is an apocalyptic number.

It is an amenable number.

12108617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12108617 is an equidigital number, since it uses as much as digits as its factorization.

12108617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 12108617 is about 3479.7438124092. The cubic root of 12108617 is about 229.6315272036.

Adding to 12108617 its reverse (71680121), we get a palindrome (83788738).

The spelling of 12108617 in words is "twelve million, one hundred eight thousand, six hundred seventeen".