318841 has 2 divisors, whose sum is σ = 318842. Its totient is φ = 318840.

The previous prime is 318833. The next prime is 318863. The reversal of 318841 is 148813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308025 + 10816 = 555^2 + 104^2 .

It is a cyclic number.

It is not a de Polignac number, because 318841 - 2³ = 318833 is a prime.

It is not a weakly prime, because it can be changed into another prime (318811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159420 + 159421.

It is an arithmetic number, because the mean of its divisors is an integer number (159421).

2³¹⁸⁸⁴¹ is an apocalyptic number.

It is an amenable number.

318841 is a deficient number, since it is larger than the sum of its proper divisors (1).

318841 is an equidigital number, since it uses as much as digits as its factorization.

318841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 25.

The square root of 318841 is about 564.6600747352. The cubic root of 318841 is about 68.3163603823.

The spelling of 318841 in words is "three hundred eighteen thousand, eight hundred forty-one".