957599domain: NPropertiesPrimalityPrimeyesAppears in sequencesRecords in A039654.at n=34A292112Lesser of twin primes p such that d(p+1) > d(q+1) for all lessers of twin primes q < p, where d(n) is the number of divisors of n (A000005).at n=24A328329Prime numbersat n=75445