71000065 has 16 divisors (see below), whose sum is σ = 86860800. Its totient is φ = 55703232.

The previous prime is 71000051. The next prime is 71000081. The reversal of 71000065 is 56000017.

It is not a de Polignac number, because 71000065 - 2⁹ = 70999553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67816 + ... + 68854.

It is an arithmetic number, because the mean of its divisors is an integer number (5428800).

Almost surely, 2^71000065 is an apocalyptic number.

It is an amenable number.

71000065 is a deficient number, since it is larger than the sum of its proper divisors (15860735).

71000065 is a wasteful number, since it uses less digits than its factorization.

71000065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 71000065 is about 8426.1536302159. The cubic root of 71000065 is about 414.0819013052.

The spelling of 71000065 in words is "seventy-one million, sixty-five", and thus it is an aban number and an uban number.