318745 has 12 divisors (see below), whose sum is σ = 445284. Its totient is φ = 218400.

The previous prime is 318743. The next prime is 318749. The reversal of 318745 is 547813.

318745 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 2 ways, for example, as 35721 + 283024 = 189^2 + 532^2 .

It is not a de Polignac number, because 318745 - 2¹ = 318743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (318743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406 + ... + 895.

It is an arithmetic number, because the mean of its divisors is an integer number (37107).

2³¹⁸⁷⁴⁵ is an apocalyptic number.

318745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

318745 is a deficient number, since it is larger than the sum of its proper divisors (126539).

318745 is a wasteful number, since it uses less digits than its factorization.

318745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1313 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 318745 is about 564.5750614400. The cubic root of 318745 is about 68.3095032248.

The spelling of 318745 in words is "three hundred eighteen thousand, seven hundred forty-five".