2818105 has 8 divisors (see below), whose sum is σ = 3473352. Its totient is φ = 2193408.

The previous prime is 2818103. The next prime is 2818111. The reversal of 2818105 is 5018182.

It can be written as a sum of positive squares in 4 ways, for example, as 346921 + 2471184 = 589^2 + 1572^2 .

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 2818105 - 2¹ = 2818103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2818105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2818103) 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, 7432 + ... + 7801.

It is an arithmetic number, because the mean of its divisors is an integer number (434169).

2^2818105 is an apocalyptic number.

It is an amenable number.

2818105 is a deficient number, since it is larger than the sum of its proper divisors (655247).

2818105 is a wasteful number, since it uses less digits than its factorization.

2818105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15275.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 2818105 is about 1678.7212395154. The cubic root of 2818105 is about 141.2491111229.

The spelling of 2818105 in words is "two million, eight hundred eighteen thousand, one hundred five".