201006165 has 16 divisors (see below), whose sum is σ = 321902208. Its totient is φ = 107105856.

The previous prime is 201006151. The next prime is 201006173. The reversal of 201006165 is 561600102.

It is a happy number.

It is not a de Polignac number, because 201006165 - 2⁵ = 201006133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12867 + ... + 23823.

It is an arithmetic number, because the mean of its divisors is an integer number (20118888).

Almost surely, 2^201006165 is an apocalyptic number.

It is an amenable number.

201006165 is a deficient number, since it is larger than the sum of its proper divisors (120896043).

201006165 is a wasteful number, since it uses less digits than its factorization.

201006165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12188.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 201006165 is about 14177.6642998768. The cubic root of 201006165 is about 585.7825891139.

Adding to 201006165 its reverse (561600102), we get a palindrome (762606267).

The spelling of 201006165 in words is "two hundred one million, six thousand, one hundred sixty-five".