12659 has 2 divisors, whose sum is σ = 12660.
Its totient is φ = 12658.
The previous prime is 12653. The next prime is 12671. The reversal of 12659 is 95621.
It is a weak prime.
It is an emirp because it is prime and its reverse (95621) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12659 - 212 = 8563 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (12653) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6329 + 6330.
It is an arithmetic number, because the mean of its divisors is an integer number (6330).
212659 is an apocalyptic number.
12659 is a deficient number, since it is larger than the sum of its proper divisors (1).
12659 is an equidigital number, since it uses as much as digits as its factorization.
12659 is an evil number, because the sum of its binary digits is even.
The product of its digits is 540, while the sum is 23.
The square root of 12659 is about 112.5122215584.
The cubic root of 12659 is about 23.3059315518.
The spelling of 12659 in words is "twelve thousand, six hundred fifty-nine".