220165 has 8 divisors (see below), whose sum is σ = 288288. Its totient is φ = 160080.

The previous prime is 220163. The next prime is 220169. The reversal of 220165 is 561022.

It is a happy number.

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

It is not a de Polignac number, because 220165 - 2¹ = 220163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1947 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (36036).

2²²⁰¹⁶⁵ is an apocalyptic number.

It is an amenable number.

220165 is a deficient number, since it is larger than the sum of its proper divisors (68123).

220165 is a wasteful number, since it uses less digits than its factorization.

220165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 220165 is about 469.2174336062. The cubic root of 220165 is about 60.3831956234.

Adding to 220165 its reverse (561022), we get a palindrome (781187).

The spelling of 220165 in words is "two hundred twenty thousand, one hundred sixty-five".