# 2141

This number is a prime.

In a humorous old puzzle, "Professor Euclide Paracelso Bombast Umbugio of Guayazuela" predicts the end of the world for the year 2141 A.D. [Trigg]

The smallest multidigit prime such that sum of its digits equals the product of digits. [Russo]

The smallest prime that differs from its reversal by both a square and cube. [Poo Sung]

2141 and 2273 are the first pair of consecutive Sophie Germain primes that are both Honaker primes. [Gaydos]

The smallest Honaker prime for which the sums of the squares of the digits of itself and its prime index (323) are also equal. [Gaydos]

The smallest Honaker prime to contain as a digit string the sum of the digits of the previous n Honaker primes. Note that n = -2+14*1. [Worrom]