1559 has 2 divisors, whose sum is σ = 1560.
Its totient is φ = 1558.
The previous prime is 1553. The next prime is 1567. The reversal of 1559 is 9551.
It is a weak prime.
It is an emirp because it is prime and its reverse (9551) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1559 - 24 = 1543 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a plaindrome in base 6, base 10 and base 15.
It is a self number, because there is not a number n which added to its sum of digits gives 1559.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1553) by changing a digit.
It is an upside-down number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 779 + 780.
It is an arithmetic number, because the mean of its divisors is an integer number (780).
1559 is a deficient number, since it is larger than the sum of its proper divisors (1).
1559 is an equidigital number, since it uses as much as digits as its factorization.
1559 is an evil number, because the sum of its binary digits is even.
The product of its digits is 225, while the sum is 20.
The square root of 1559 is about 39.4841740448.
The cubic root of 1559 is about 11.5953013075.
The spelling of 1559 in words is "one thousand, five hundred fifty-nine".