71000165 has 8 divisors (see below), whose sum is σ = 86367768. Its totient is φ = 56021760.

The previous prime is 71000159. The next prime is 71000191. The reversal of 71000165 is 56100017.

It can be written as a sum of positive squares in 4 ways, for example, as 9628609 + 61371556 = 3103^2 + 7834^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71000165 - 2¹⁶ = 70934629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96896 + ... + 97625.

It is an arithmetic number, because the mean of its divisors is an integer number (10795971).

Almost surely, 2^71000165 is an apocalyptic number.

It is an amenable number.

71000165 is a deficient number, since it is larger than the sum of its proper divisors (15367603).

71000165 is a wasteful number, since it uses less digits than its factorization.

71000165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194599.

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

The square root of 71000165 is about 8426.1595641194. The cubic root of 71000165 is about 414.0820957096.

The spelling of 71000165 in words is "seventy-one million, one hundred sixty-five", and thus it is an aban number.