163289 has 4 divisors (see below), whose sum is σ = 186624. Its totient is φ = 139956.

The previous prime is 163259. The next prime is 163307. The reversal of 163289 is 982361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 982361 = 73 ⋅13457.

It is a cyclic number.

It is not a de Polignac number, because 163289 - 2¹² = 159193 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (163249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11657 + ... + 11670.

It is an arithmetic number, because the mean of its divisors is an integer number (46656).

2¹⁶³²⁸⁹ is an apocalyptic number.

It is an amenable number.

163289 is a deficient number, since it is larger than the sum of its proper divisors (23335).

163289 is an equidigital number, since it uses as much as digits as its factorization.

163289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23334.

The product of its digits is 2592, while the sum is 29.

The square root of 163289 is about 404.0903364348. The cubic root of 163289 is about 54.6578204669.

The spelling of 163289 in words is "one hundred sixty-three thousand, two hundred eighty-nine".