Subtracting 30547 from its reverse (74503), we obtain a triangular number (43956 = T296).
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
30547 is a lucky number.
It is a nialpdrome in base 16.
230547 is an apocalyptic number.
30547 is a wasteful number, since it uses less digits than its factorization.
30547 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2788.
The square root of 30547 is about 174.7770007753. Note that the first 3 decimals coincide. The cubic root of 30547 is about 31.2600394410.
The spelling of 30547 in words is "thirty thousand, five hundred forty-seven".