169161 has 8 divisors (see below), whose sum is σ = 228000. Its totient is φ = 111552.

The previous prime is 169159. The next prime is 169177. The reversal of 169161 is 161961.

169161 = T₁₂₈ + T₁₂₉ + ... + T₁₄₅.

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

It is not a de Polignac number, because 169161 - 2¹ = 169159 is a prime.

It is a Curzon number.

169161 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 169161.

It is not an unprimeable number, because it can be changed into a prime (169111) 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, 90 + ... + 588.

It is an arithmetic number, because the mean of its divisors is an integer number (28500).

2¹⁶⁹¹⁶¹ is an apocalyptic number.

It is an amenable number.

169161 is a deficient number, since it is larger than the sum of its proper divisors (58839).

169161 is a wasteful number, since it uses less digits than its factorization.

169161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

The product of its digits is 324, while the sum is 24.

The square root of 169161 is about 411.2918671698. The cubic root of 169161 is about 55.3052994234.

The spelling of 169161 in words is "one hundred sixty-nine thousand, one hundred sixty-one".