71108 has 12 divisors (see below), whose sum is σ = 128940. Its totient is φ = 34272.
The previous prime is 71089. The next prime is 71119. The reversal of 71108 is 80117.
It can be written as a sum of positive squares in 2 ways, for example, as 12544 + 58564 = 112^2 + 242^2 .
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71108.
It is an unprimeable number.
71108 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191 + ... + 422.
It is an arithmetic number, because the mean of its divisors is an integer number (10745).
271108 is an apocalyptic number.
It is an amenable number.
71108 is a deficient number, since it is larger than the sum of its proper divisors (57832).
71108 is a wasteful number, since it uses less digits than its factorization.
71108 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 646 (or 644 counting only the distinct ones).
The product of its (nonzero) digits is 56, while the sum is 17.
The square root of 71108 is about 266.6608332695. The cubic root of 71108 is about 41.4291625531.
Subtracting 71108 from its reverse (80117), we obtain a palindrome (9009).
The spelling of 71108 in words is "seventy-one thousand, one hundred eight".
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