2851365 has 24 divisors (see below), whose sum is σ = 5017824. Its totient is φ = 1381600.

The previous prime is 2851361. The next prime is 2851391. The reversal of 2851365 is 5631582.

It is not a de Polignac number, because 2851365 - 2² = 2851361 is a prime.

It is an Ulam number.

2851365 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030 + ... + 2600.

It is an arithmetic number, because the mean of its divisors is an integer number (209076).

2^2851365 is an apocalyptic number.

It is an amenable number.

2851365 is a deficient number, since it is larger than the sum of its proper divisors (2166459).

2851365 is a wasteful number, since it uses less digits than its factorization.

2851365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1590 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 2851365 is about 1688.5985313271. The cubic root of 2851365 is about 141.8026253407.

The spelling of 2851365 in words is "two million, eight hundred fifty-one thousand, three hundred sixty-five".