160989 has 8 divisors (see below), whose sum is σ = 217152. Its totient is φ = 106080.

The previous prime is 160981. The next prime is 160997. The reversal of 160989 is 989061.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (160981) and next prime (160997).

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

It is not a de Polignac number, because 160989 - 2³ = 160981 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49 + ... + 569.

It is an arithmetic number, because the mean of its divisors is an integer number (27144).

2¹⁶⁰⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

160989 is a deficient number, since it is larger than the sum of its proper divisors (56163).

160989 is a wasteful number, since it uses less digits than its factorization.

160989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 160989 is about 401.2343454890. The cubic root of 160989 is about 54.3999792748.

The spelling of 160989 in words is "one hundred sixty thousand, nine hundred eighty-nine".