318971 has 8 divisors (see below), whose sum is σ = 349920. Its totient is φ = 289408.

The previous prime is 318949. The next prime is 318979. The reversal of 318971 is 179813.

318971 is nontrivially palindromic in base 7.

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

It is not a de Polignac number, because 318971 - 2⁶ = 318907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 816.

It is an arithmetic number, because the mean of its divisors is an integer number (43740).

2³¹⁸⁹⁷¹ is an apocalyptic number.

318971 is a deficient number, since it is larger than the sum of its proper divisors (30949).

318971 is a wasteful number, since it uses less digits than its factorization.

318971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693.

The product of its digits is 1512, while the sum is 29.

The square root of 318971 is about 564.7751765083. The cubic root of 318971 is about 68.3256439229.

The spelling of 318971 in words is "three hundred eighteen thousand, nine hundred seventy-one".