2178541domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 1 + multiple perfect number.at n=6A093034Primes of the form prime(x)*prime(x+1) - (prime(x+1)-prime(x)).at n=36A140120Primes of the form 1 + 4-multiperfect numbers.at n=1A171263Prime numbersat n=161225