181

This number is a prime.

Just showing those entries submitted by 'Capelle': (Click here to show all)

+ The smallest palindromic prime number whose sum of digits is composite. Note that 181 is also the smallest such that at least one of the digits is composite. [Capelle]

+ Every natural number greater than 181 can be written as sum of cubes of the first two primes. [Capelle]

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