1559963domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that p + digitsum(p) = q^k for some prime q and k > 1 where digitsum(n) = A007953(n).at n=26A242368Primes p such that p + A007953(p) is the square of a prime.at n=21A307315Prime numbersat n=118373