201169 has 4 divisors (see below), whose sum is σ = 206644. Its totient is φ = 195696.

The previous prime is 201167. The next prime is 201193. The reversal of 201169 is 961102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 150544 + 50625 = 388^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 201169 - 2¹ = 201167 is a prime.

It is a super-2 number, since 2×201169² = 80937933122, which contains 22 as substring.

It is a Duffinian number.

201169 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (201163) 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, 2682 + ... + 2755.

It is an arithmetic number, because the mean of its divisors is an integer number (51661).

2²⁰¹¹⁶⁹ is an apocalyptic number.

It is an amenable number.

201169 is a deficient number, since it is larger than the sum of its proper divisors (5475).

201169 is an equidigital number, since it uses as much as digits as its factorization.

201169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 201169 is about 448.5186729669. The cubic root of 201169 is about 58.5940727153.

It can be divided in two parts, 2011 and 69, that added together give a triangular number (2080 = T₆₄).

The spelling of 201169 in words is "two hundred one thousand, one hundred sixty-nine".