71039 has 2 divisors, whose sum is σ = 71040. Its totient is φ = 71038.

The previous prime is 71023. The next prime is 71059. The reversal of 71039 is 93017.

It is an a-pointer prime, because the next prime (71059) can be obtained adding 71039 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71039 - 2⁴ = 71023 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 71039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71059) 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, 35519 + 35520.

It is an arithmetic number, because the mean of its divisors is an integer number (35520).

2⁷¹⁰³⁹ is an apocalyptic number.

71039 is a deficient number, since it is larger than the sum of its proper divisors (1).

71039 is an equidigital number, since it uses as much as digits as its factorization.

71039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 71039 is about 266.5314240385. The cubic root of 71039 is about 41.4157578854.

The spelling of 71039 in words is "seventy-one thousand, thirty-nine".