189369 has 12 divisors (see below), whose sum is σ = 279396. Its totient is φ = 123552.

The previous prime is 189361. The next prime is 189377. The reversal of 189369 is 963981.

It is an interprime number because it is at equal distance from previous prime (189361) and next prime (189377).

It can be written as a sum of positive squares in 2 ways, for example, as 131769 + 57600 = 363^2 + 240^2 .

It is not a de Polignac number, because 189369 - 2³ = 189361 is a prime.

It is a super-2 number, since 2×189369² = 71721236322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279 + ... + 675.

It is an arithmetic number, because the mean of its divisors is an integer number (23283).

2¹⁸⁹³⁶⁹ is an apocalyptic number.

It is an amenable number.

189369 is a deficient number, since it is larger than the sum of its proper divisors (90027).

189369 is a wasteful number, since it uses less digits than its factorization.

189369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 453 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 189369 is about 435.1654857637. The cubic root of 189369 is about 57.4252589079.

The spelling of 189369 in words is "one hundred eighty-nine thousand, three hundred sixty-nine".