71310085 has 16 divisors (see below), whose sum is σ = 106687872. Its totient is φ = 44452800.

The previous prime is 71310079. The next prime is 71310103. The reversal of 71310085 is 58001317.

It is not a de Polignac number, because 71310085 - 2³ = 71310077 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 15 ways as a sum of consecutive naturals, for example, 92226 + ... + 92995.

It is an arithmetic number, because the mean of its divisors is an integer number (6667992).

Almost surely, 2^71310085 is an apocalyptic number.

It is an amenable number.

71310085 is a deficient number, since it is larger than the sum of its proper divisors (35377787).

71310085 is a wasteful number, since it uses less digits than its factorization.

71310085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185244.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 71310085 is about 8444.5298862637. The cubic root of 71310085 is about 414.6837189523.

The spelling of 71310085 in words is "seventy-one million, three hundred ten thousand, eighty-five".