2205659 has 2 divisors, whose sum is σ = 2205660. Its totient is φ = 2205658.

The previous prime is 2205649. The next prime is 2205661. The reversal of 2205659 is 9565022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2205659 is a prime.

Together with 2205661, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹⁰ + 2¹⁹ + 0 + 5² + 6⁸ + 5⁴ + 9² .

It is not a weakly prime, because it can be changed into another prime (2205629) 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, 1102829 + 1102830.

It is an arithmetic number, because the mean of its divisors is an integer number (1102830).

2^2205659 is an apocalyptic number.

2205659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205659 is an equidigital number, since it uses as much as digits as its factorization.

2205659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2205659 is about 1485.1461207571. The cubic root of 2205659 is about 130.1705650687.

The spelling of 2205659 in words is "two million, two hundred five thousand, six hundred fifty-nine".