189363 has 16 divisors (see below), whose sum is σ = 276480. Its totient is φ = 114816.

The previous prime is 189361. The next prime is 189377. The reversal of 189363 is 363981.

It is not a de Polignac number, because 189363 - 2¹ = 189361 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 189363.

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 15 ways as a sum of consecutive naturals, for example, 2358 + ... + 2436.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2¹⁸⁹³⁶³ is an apocalyptic number.

189363 is a deficient number, since it is larger than the sum of its proper divisors (87117).

189363 is a wasteful number, since it uses less digits than its factorization.

189363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its digits is 3888, while the sum is 30.

The square root of 189363 is about 435.1585917801. The cubic root of 189363 is about 57.4246524109.

The spelling of 189363 in words is "one hundred eighty-nine thousand, three hundred sixty-three".