201165 has 8 divisors (see below), whose sum is σ = 321888. Its totient is φ = 107280.

The previous prime is 201163. The next prime is 201167. The reversal of 201165 is 561102.

201165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201163) and next prime (201167).

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

It is not a de Polignac number, because 201165 - 2¹ = 201163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 13411 = 201165 / (2 + 0 + 1 + 1 + 6 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201163) 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, 6691 + ... + 6720.

It is an arithmetic number, because the mean of its divisors is an integer number (40236).

2²⁰¹¹⁶⁵ is an apocalyptic number.

It is an amenable number.

201165 is a deficient number, since it is larger than the sum of its proper divisors (120723).

201165 is a wasteful number, since it uses less digits than its factorization.

201165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13419.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 201165 is about 448.5142138216. The cubic root of 201165 is about 58.5936843555.

Adding to 201165 its reverse (561102), we get a palindrome (762267).

The spelling of 201165 in words is "two hundred one thousand, one hundred sixty-five".