160809 has 12 divisors (see below), whose sum is σ = 236208. Its totient is φ = 97240.

The previous prime is 160807. The next prime is 160813. The reversal of 160809 is 908061.

It is not a de Polignac number, because 160809 - 2¹ = 160807 is a prime.

It is a Curzon number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (160807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142 + ... + 584.

It is an arithmetic number, because the mean of its divisors is an integer number (19684).

2¹⁶⁰⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

160809 is a deficient number, since it is larger than the sum of its proper divisors (75399).

160809 is a wasteful number, since it uses less digits than its factorization.

160809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 160809 is about 401.0099749383. The cubic root of 160809 is about 54.3796970444.

It can be divided in two parts, 160 and 809, that added together give a palindrome (969).

The spelling of 160809 in words is "one hundred sixty thousand, eight hundred nine".