1691

This number is a composite.

The smallest strobogrammatic tnaillirb, i.e., the smallest strobogrammatic brilliant number whose reversal is a different brilliant number. [Post]

The smallest strobogrammatic emirpimes. [Capelle]

The only known strobogrammatic number that is the sum of three distinct Fibonacci primes, i.e., 1691 = 5 + 89 + 1597. [Honaker]