318061 has 4 divisors (see below), whose sum is σ = 322492. Its totient is φ = 313632.

The previous prime is 318023. The next prime is 318077. The reversal of 318061 is 160813.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 275625 + 42436 = 525^2 + 206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2106 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (80623).

2³¹⁸⁰⁶¹ is an apocalyptic number.

It is an amenable number.

318061 is a deficient number, since it is larger than the sum of its proper divisors (4431).

318061 is an equidigital number, since it uses as much as digits as its factorization.

318061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 318061 is about 563.9689707776. The cubic root of 318061 is about 68.2606060794.

Adding to 318061 its reverse (160813), we get a palindrome (478874).

The spelling of 318061 in words is "three hundred eighteen thousand, sixty-one".