2005365 has 8 divisors (see below), whose sum is σ = 3208608. Its totient is φ = 1069520.

The previous prime is 2005343. The next prime is 2005369. The reversal of 2005365 is 5635002.

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

It is not a de Polignac number, because 2005365 - 2¹⁰ = 2004341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005369) 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, 66831 + ... + 66860.

It is an arithmetic number, because the mean of its divisors is an integer number (401076).

2^2005365 is an apocalyptic number.

It is an amenable number.

2005365 is a deficient number, since it is larger than the sum of its proper divisors (1203243).

2005365 is a wasteful number, since it uses less digits than its factorization.

2005365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133699.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2005365 is about 1416.1091059661. The cubic root of 2005365 is about 126.1046623449.

It can be divided in two parts, 200 and 5365, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 2005365 in words is "two million, five thousand, three hundred sixty-five".