165375161 has 8 divisors (see below), whose sum is σ = 190673664. Its totient is φ = 140495040.

The previous prime is 165375157. The next prime is 165375191. The reversal of 165375161 is 161573561.

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

It is not a de Polignac number, because 165375161 - 2² = 165375157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165375101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 103745 + ... + 105326.

It is an arithmetic number, because the mean of its divisors is an integer number (23834208).

Almost surely, 2^165375161 is an apocalyptic number.

It is an amenable number.

165375161 is a deficient number, since it is larger than the sum of its proper divisors (25298503).

165375161 is a wasteful number, since it uses less digits than its factorization.

165375161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209191.

The product of its digits is 18900, while the sum is 35.

The square root of 165375161 is about 12859.8274094173. The cubic root of 165375161 is about 548.8960346283.

The spelling of 165375161 in words is "one hundred sixty-five million, three hundred seventy-five thousand, one hundred sixty-one".