2216265 has 16 divisors (see below), whose sum is σ = 3597696. Its totient is φ = 1164800.

The previous prime is 2216237. The next prime is 2216281. The reversal of 2216265 is 5626122.

It is not a de Polignac number, because 2216265 - 2¹² = 2212169 is a prime.

It is an Ulam number.

It is a Curzon number.

2216265 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25 + ... + 2105.

It is an arithmetic number, because the mean of its divisors is an integer number (224856).

2^2216265 is an apocalyptic number.

It is an amenable number.

2216265 is a deficient number, since it is larger than the sum of its proper divisors (1381431).

2216265 is a wasteful number, since it uses less digits than its factorization.

2216265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160.

The product of its digits is 1440, while the sum is 24.

The square root of 2216265 is about 1488.7125310146. The cubic root of 2216265 is about 130.3788750014.

The spelling of 2216265 in words is "two million, two hundred sixteen thousand, two hundred sixty-five".