This number is a prime.
Smallest emirp such that 1^n+9^n+1^n+3^n+9^n+1^n+7^n are all distinct primes for n=0 to 9 [Gupta]
Smallest emirp such that 1^n+9^n+1^n+3^n+9^n+1^n+7^n are
all distinct primes for n=0 to 9 [Gupta]