161169 has 8 divisors (see below), whose sum is σ = 221952. Its totient is φ = 103920.

The previous prime is 161167. The next prime is 161201. The reversal of 161169 is 961161.

161169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161169 - 2¹ = 161167 is a prime.

It is a super-2 number, since 2×161169² = 51950893122, which contains 22 as substring.

It is a Curzon number.

161169 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (161167) 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, 774 + ... + 959.

It is an arithmetic number, because the mean of its divisors is an integer number (27744).

2¹⁶¹¹⁶⁹ is an apocalyptic number.

It is an amenable number.

161169 is a deficient number, since it is larger than the sum of its proper divisors (60783).

161169 is a wasteful number, since it uses less digits than its factorization.

161169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767.

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

The square root of 161169 is about 401.4585906417. The cubic root of 161169 is about 54.4202463926.

The spelling of 161169 in words is "one hundred sixty-one thousand, one hundred sixty-nine".