165004 has 24 divisors (see below), whose sum is σ = 338688. Its totient is φ = 68880.

The previous prime is 165001. The next prime is 165037. The reversal of 165004 is 400561.

It is not an unprimeable number, because it can be changed into a prime (165001) 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 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (14112).

2¹⁶⁵⁰⁰⁴ is an apocalyptic number.

165004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165004 is an abundant number, since it is smaller than the sum of its proper divisors (173684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165004 is a wasteful number, since it uses less digits than its factorization.

165004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 163 counting only the distinct ones).

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

The square root of 165004 is about 406.2068438616. The cubic root of 165004 is about 54.8485087374.

Adding to 165004 its reverse (400561), we get a palindrome (565565).

The spelling of 165004 in words is "one hundred sixty-five thousand, four".