165124171 has 8 divisors (see below), whose sum is σ = 169137584. Its totient is φ = 161118720.

The previous prime is 165124159. The next prime is 165124187. The reversal of 165124171 is 171421561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165124171 - 2¹¹ = 165122123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165124121) 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, 75331 + ... + 77491.

It is an arithmetic number, because the mean of its divisors is an integer number (21142198).

Almost surely, 2^165124171 is an apocalyptic number.

165124171 is a deficient number, since it is larger than the sum of its proper divisors (4013413).

165124171 is a wasteful number, since it uses less digits than its factorization.

165124171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981.

The product of its digits is 1680, while the sum is 28.

The square root of 165124171 is about 12850.0650192908. The cubic root of 165124171 is about 548.6182073934.

The spelling of 165124171 in words is "one hundred sixty-five million, one hundred twenty-four thousand, one hundred seventy-one".