2851205 has 8 divisors (see below), whose sum is σ = 3910272. Its totient is φ = 1955088.

The previous prime is 2851187. The next prime is 2851231. The reversal of 2851205 is 5021582.

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 2851205 - 2⁶ = 2851141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40697 + ... + 40766.

It is an arithmetic number, because the mean of its divisors is an integer number (488784).

2^2851205 is an apocalyptic number.

It is an amenable number.

2851205 is a deficient number, since it is larger than the sum of its proper divisors (1059067).

2851205 is an equidigital number, since it uses as much as digits as its factorization.

2851205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81475.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2851205 is about 1688.5511540963. The cubic root of 2851205 is about 141.7999729451.

Adding to 2851205 its reverse (5021582), we get a palindrome (7872787).

The spelling of 2851205 in words is "two million, eight hundred fifty-one thousand, two hundred five".