163819domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form p==3 (mod 4) such that the average of their primitive roots equals p/2.at n=27A267010Emirps p such that p+(sum of digits of p) and reverse(p)+(sum of digits of p) are emirps.at n=14A340843Prime numbersat n=14999