165175 has 6 divisors (see below), whose sum is σ = 204848. Its totient is φ = 132120.

The previous prime is 165173. The next prime is 165181. The reversal of 165175 is 571561.

165175 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 165175 - 2¹ = 165173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 6607 = 165175 / (1 + 6 + 5 + 1 + 7 + 5).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3279 + ... + 3328.

2¹⁶⁵¹⁷⁵ is an apocalyptic number.

165175 is a deficient number, since it is larger than the sum of its proper divisors (39673).

165175 is an equidigital number, since it uses as much as digits as its factorization.

165175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617 (or 6612 counting only the distinct ones).

The product of its digits is 1050, while the sum is 25.

The square root of 165175 is about 406.4172732550. The cubic root of 165175 is about 54.8674494033.

The spelling of 165175 in words is "one hundred sixty-five thousand, one hundred seventy-five".