202189 has 8 divisors (see below), whose sum is σ = 221312. Its totient is φ = 183600.

The previous prime is 202187. The next prime is 202201. The reversal of 202189 is 981202.

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 202189 - 2¹ = 202187 is a prime.

202189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202183) 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, 1264 + ... + 1414.

It is an arithmetic number, because the mean of its divisors is an integer number (27664).

2²⁰²¹⁸⁹ is an apocalyptic number.

It is an amenable number.

202189 is a deficient number, since it is larger than the sum of its proper divisors (19123).

202189 is a wasteful number, since it uses less digits than its factorization.

202189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 202189 is about 449.6543116662. The cubic root of 202189 is about 58.6929368975.

It can be divided in two parts, 20 and 2189, that added together give a square (2209 = 47²).

The spelling of 202189 in words is "two hundred two thousand, one hundred eighty-nine".