2861205 has 32 divisors (see below), whose sum is σ = 4821120. Its totient is φ = 1447680.

The previous prime is 2861203. The next prime is 2861213. The reversal of 2861205 is 5021682.

2861205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2861205 - 2¹ = 2861203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861203) 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 31 ways as a sum of consecutive naturals, for example, 46875 + ... + 46935.

It is an arithmetic number, because the mean of its divisors is an integer number (150660).

2^2861205 is an apocalyptic number.

It is an amenable number.

2861205 is a deficient number, since it is larger than the sum of its proper divisors (1959915).

2861205 is a wasteful number, since it uses less digits than its factorization.

2861205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2861205 is about 1691.5096807290. The cubic root of 2861205 is about 141.9655573411.

Adding to 2861205 its reverse (5021682), we get a palindrome (7882887).

The spelling of 2861205 in words is "two million, eight hundred sixty-one thousand, two hundred five".