17123 has 2 divisors, whose sum is σ = 17124. Its totient is φ = 17122.
The previous prime is 17117. The next prime is 17137. The reversal of 17123 is 32171.
It is an a-pointer prime, because the next prime (17137) can be obtained adding 17123 to its sum of digits (14).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 17123 - 24 = 17107 is a prime.
It is a plaindrome in base 12.
It is a junction number, because it is equal to n+sod(n) for n = 17098 and 17107.
It is not a weakly prime, because it can be changed into another prime (17183) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8561 + 8562.
It is an arithmetic number, because the mean of its divisors is an integer number (8562).
217123 is an apocalyptic number.
17123 is a deficient number, since it is larger than the sum of its proper divisors (1).
17123 is an equidigital number, since it uses as much as digits as its factorization.
17123 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 42, while the sum is 14.
The square root of 17123 is about 130.8548814527. The cubic root of 17123 is about 25.7746802054.
Adding to 17123 its reverse (32171), we get a palindrome (49294).
The spelling of 17123 in words is "seventeen thousand, one hundred twenty-three", and thus it is an iban number.
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