163489 has 8 divisors (see below), whose sum is σ = 177120. Its totient is φ = 150336.

The previous prime is 163487. The next prime is 163517. The reversal of 163489 is 984361.

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

It is a cyclic number.

It is not a de Polignac number, because 163489 - 2¹ = 163487 is a prime.

It is a Duffinian number.

163489 is a modest number, since divided by 489 gives 163 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 163489.

It is not an unprimeable number, because it can be changed into a prime (163481) 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, 922 + ... + 1084.

It is an arithmetic number, because the mean of its divisors is an integer number (22140).

2¹⁶³⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

163489 is a deficient number, since it is larger than the sum of its proper divisors (13631).

163489 is a wasteful number, since it uses less digits than its factorization.

163489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239.

The product of its digits is 5184, while the sum is 31.

The square root of 163489 is about 404.3377301217. The cubic root of 163489 is about 54.6801267338.

The spelling of 163489 in words is "one hundred sixty-three thousand, four hundred eighty-nine".