169000 has 48 divisors (see below), whose sum is σ = 428220. Its totient is φ = 62400.

The previous prime is 168991. The next prime is 169003. The reversal of 169000 is 961.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 7396 + 161604 = 86^2 + 402^2 .

It is a super-2 number, since 2×169000² = 57122000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169003) by changing a digit.

169000 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12994 + ... + 13006.

2¹⁶⁹⁰⁰⁰ is an apocalyptic number.

169000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214110).

169000 is an abundant number, since it is smaller than the sum of its proper divisors (259220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169000 is a wasteful number, since it uses less digits than its factorization.

169000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 169000 is about 411.0960958219. The cubic root of 169000 is about 55.2877481368.

Adding to 169000 its reverse (961), we get a palindrome (169961).

The spelling of 169000 in words is "one hundred sixty-nine thousand".