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BaseRepresentation
bin1111111010010011
310022101202
433322103
54041141
61221415
7361001
oct177223
9108352
1065171
1144a67
123186b
1323882
1419a71
151449b
hexfe93

65171 has 2 divisors, whose sum is σ = 65172. Its totient is φ = 65170.

The previous prime is 65167. The next prime is 65173. The reversal of 65171 is 17156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65171 - 22 = 65167 is a prime.

It is a Sophie Germain prime.

Together with 65173, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65171.

It is not a weakly prime, because it can be changed into another prime (65173) 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, 32585 + 32586.

It is an arithmetic number, because the mean of its divisors is an integer number (32586).

265171 is an apocalyptic number.

65171 is a deficient number, since it is larger than the sum of its proper divisors (1).

65171 is an equidigital number, since it uses as much as digits as its factorization.

65171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 210, while the sum is 20.

The square root of 65171 is about 255.2861139976. The cubic root of 65171 is about 40.2424853839.

The spelling of 65171 in words is "sixty-five thousand, one hundred seventy-one".