165130165 has 16 divisors (see below), whose sum is σ = 203600880. Its totient is φ = 128494080.

The previous prime is 165130153. The next prime is 165130169. The reversal of 165130165 is 561031561.

It can be written as a sum of positive squares in 8 ways, for example, as 1110916 + 164019249 = 1054^2 + 12807^2 .

It is not a de Polignac number, because 165130165 - 2⁷ = 165130037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165130169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80371 + ... + 82399.

It is an arithmetic number, because the mean of its divisors is an integer number (12725055).

Almost surely, 2^165130165 is an apocalyptic number.

It is an amenable number.

165130165 is a deficient number, since it is larger than the sum of its proper divisors (38470715).

165130165 is a wasteful number, since it uses less digits than its factorization.

165130165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 165130165 is about 12850.2982455661. The cubic root of 165130165 is about 548.6248455852.

The spelling of 165130165 in words is "one hundred sixty-five million, one hundred thirty thousand, one hundred sixty-five".