71312875 has 32 divisors (see below), whose sum is σ = 96887232. Its totient is φ = 52185600.

The previous prime is 71312867. The next prime is 71312911. The reversal of 71312875 is 57821317.

It is not a de Polignac number, because 71312875 - 2³ = 71312867 is a prime.

It is a super-2 number, since 2×71312875² = 10171052281531250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71312875.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 78172 + ... + 79078.

It is an arithmetic number, because the mean of its divisors is an integer number (3027726).

Almost surely, 2^71312875 is an apocalyptic number.

71312875 is a deficient number, since it is larger than the sum of its proper divisors (25574357).

71312875 is a wasteful number, since it uses less digits than its factorization.

71312875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 966 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 71312875 is about 8444.6950803448. The cubic root of 71312875 is about 414.6891270349.

The spelling of 71312875 in words is "seventy-one million, three hundred twelve thousand, eight hundred seventy-five".