165107 has 4 divisors (see below), whose sum is σ = 169176. Its totient is φ = 161040.

The previous prime is 165103. The next prime is 165133. The reversal of 165107 is 701561.

165107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165107 - 2² = 165103 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1973 + ... + 2054.

It is an arithmetic number, because the mean of its divisors is an integer number (42294).

2¹⁶⁵¹⁰⁷ is an apocalyptic number.

165107 is a deficient number, since it is larger than the sum of its proper divisors (4069).

165107 is an equidigital number, since it uses as much as digits as its factorization.

165107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 165107 is about 406.3336067814. Note that the first 3 decimals coincide. The cubic root of 165107 is about 54.8599190089.

Adding to 165107 its reverse (701561), we get a palindrome (866668).

It can be divided in two parts, 165 and 107, that added together give a palindrome (272).

The spelling of 165107 in words is "one hundred sixty-five thousand, one hundred seven".