3221165 has 16 divisors (see below), whose sum is σ = 4173120. Its totient is φ = 2378880.

The previous prime is 3221137. The next prime is 3221167. The reversal of 3221165 is 5611223.

3221165 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 3221165 - 2¹² = 3217069 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221167) 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 15 ways as a sum of consecutive naturals, for example, 3482 + ... + 4308.

It is an arithmetic number, because the mean of its divisors is an integer number (260820).

Almost surely, 2^3221165 is an apocalyptic number.

It is an amenable number.

3221165 is a deficient number, since it is larger than the sum of its proper divisors (951955).

3221165 is a wasteful number, since it uses less digits than its factorization.

3221165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892.

The product of its digits is 360, while the sum is 20.

The square root of 3221165 is about 1794.7604296953. The cubic root of 3221165 is about 147.6854318227.

Adding to 3221165 its reverse (5611223), we get a palindrome (8832388).

The spelling of 3221165 in words is "three million, two hundred twenty-one thousand, one hundred sixty-five".