200165 has 24 divisors (see below), whose sum is σ = 300960. Its totient is φ = 127008.

The previous prime is 200159. The next prime is 200171. The reversal of 200165 is 561002.

It is an interprime number because it is at equal distance from previous prime (200159) and next prime (200171).

It is not a de Polignac number, because 200165 - 2⁸ = 199909 is a prime.

200165 is a modest number, since divided by 165 gives 20 as remainder.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4634 + ... + 4676.

It is an arithmetic number, because the mean of its divisors is an integer number (12540).

2²⁰⁰¹⁶⁵ is an apocalyptic number.

It is an amenable number.

200165 is a deficient number, since it is larger than the sum of its proper divisors (100795).

200165 is a wasteful number, since it uses less digits than its factorization.

200165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 200165 is about 447.3980330757. The cubic root of 200165 is about 58.4964324413.

Adding to 200165 its reverse (561002), we get a palindrome (761167).

The spelling of 200165 in words is "two hundred thousand, one hundred sixty-five".