169801 has 4 divisors (see below), whose sum is σ = 170692. Its totient is φ = 168912.

The previous prime is 169789. The next prime is 169817. The reversal of 169801 is 108961.

169801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9801 + 160000 = 99^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 169801 - 2⁵ = 169769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169831) 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, 30 + ... + 583.

It is an arithmetic number, because the mean of its divisors is an integer number (42673).

2¹⁶⁹⁸⁰¹ is an apocalyptic number.

It is an amenable number.

169801 is a deficient number, since it is larger than the sum of its proper divisors (891).

169801 is an equidigital number, since it uses as much as digits as its factorization.

169801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 169801 is about 412.0691689510. The cubic root of 169801 is about 55.3749585985.

It can be divided in two parts, 16 and 9801, that multiplied together give a square (156816 = 396²).

The spelling of 169801 in words is "one hundred sixty-nine thousand, eight hundred one".