30071 has 2 divisors, whose sum is σ = 30072.
Its totient is φ = 30070.
The previous prime is 30059. The next prime is 30089. The reversal of 30071 is 17003.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30071 - 214 = 13687 is a prime.
It is equal to p3251 and since 30071 and 3251 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15035 + 15036.
It is an arithmetic number, because the mean of its divisors is an integer number (15036).
230071 is an apocalyptic number.
30071 is a deficient number, since it is larger than the sum of its proper divisors (1).
30071 is an equidigital number, since it uses as much as digits as its factorization.
30071 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 21, while the sum is 11.
The square root of 30071 is about 173.4099189781.
The cubic root of 30071 is about 31.0968183592.
Adding to 30071 its reverse (17003), we get a palindrome (47074).
The spelling of 30071 in words is "thirty thousand, seventy-one".