12522617 has 2 divisors, whose sum is σ = 12522618. Its totient is φ = 12522616.

The previous prime is 12522607. The next prime is 12522619. The reversal of 12522617 is 71622521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12503296 + 19321 = 3536^2 + 139^2 .

It is an emirp because it is prime and its reverse (71622521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12522617 - 2⁶ = 12522553 is a prime.

Together with 12522619, 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 (12522619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261308 + 6261309.

It is an arithmetic number, because the mean of its divisors is an integer number (6261309).

Almost surely, 2^12522617 is an apocalyptic number.

It is an amenable number.

12522617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12522617 is an equidigital number, since it uses as much as digits as its factorization.

12522617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 12522617 is about 3538.7309872326. The cubic root of 12522617 is about 232.2193290985.

The spelling of 12522617 in words is "twelve million, five hundred twenty-two thousand, six hundred seventeen".