71143 has 2 divisors, whose sum is σ = 71144. Its totient is φ = 71142.

The previous prime is 71129. The next prime is 71147. The reversal of 71143 is 34117.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71143 is a prime.

It is a super-2 number, since 2×71143² = 10122652898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71147) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35571 + 35572.

It is an arithmetic number, because the mean of its divisors is an integer number (35572).

2⁷¹¹⁴³ is an apocalyptic number.

71143 is a deficient number, since it is larger than the sum of its proper divisors (1).

71143 is an equidigital number, since it uses as much as digits as its factorization.

71143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84, while the sum is 16.

The square root of 71143 is about 266.7264516316. The cubic root of 71143 is about 41.4359587076.

It can be divided in two parts, 7114 and 3, that added together give a palindrome (7117).

The spelling of 71143 in words is "seventy-one thousand, one hundred forty-three", and thus it is an iban number.