71318 has 12 divisors (see below), whose sum is σ = 116388. Its totient is φ = 32760.

The previous prime is 71317. The next prime is 71327. The reversal of 71318 is 81317.

It is a self number, because there is not a number n which added to its sum of digits gives 71318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 233 + ... + 443.

It is an arithmetic number, because the mean of its divisors is an integer number (9699).

2⁷¹³¹⁸ is an apocalyptic number.

71318 is a deficient number, since it is larger than the sum of its proper divisors (45070).

71318 is a wasteful number, since it uses less digits than its factorization.

71318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 226 counting only the distinct ones).

The product of its digits is 168, while the sum is 20.

The square root of 71318 is about 267.0543015943. The cubic root of 71318 is about 41.4699060869.

Subtracting 71318 from its reverse (81317), we obtain a palindrome (9999).

It can be divided in two parts, 71 and 318, that multiplied together give a triangular number (22578 = T₂₁₂).

The spelling of 71318 in words is "seventy-one thousand, three hundred eighteen".