2318005 has 8 divisors (see below), whose sum is σ = 2813400. Its totient is φ = 1833216.

The previous prime is 2318003. The next prime is 2318021. The reversal of 2318005 is 5008132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 492804 + 1825201 = 702^2 + 1351^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2318005 - 2¹ = 2318003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2318003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2160 + ... + 3049.

It is an arithmetic number, because the mean of its divisors is an integer number (351675).

2^2318005 is an apocalyptic number.

It is an amenable number.

2318005 is a deficient number, since it is larger than the sum of its proper divisors (495395).

2318005 is an equidigital number, since it uses as much as digits as its factorization.

2318005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2318005 is about 1522.4995894909. The cubic root of 2318005 is about 132.3441623420.

The spelling of 2318005 in words is "two million, three hundred eighteen thousand, five".