189300243 has 8 divisors (see below), whose sum is σ = 275345856. Its totient is φ = 114727400.

The previous prime is 189300203. The next prime is 189300257. The reversal of 189300243 is 342003981.

189300243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 189300243 - 2²⁰ = 188251667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189300243.

It is not an unprimeable number, because it can be changed into a prime (189300203) 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, 2868153 + ... + 2868218.

It is an arithmetic number, because the mean of its divisors is an integer number (34418232).

Almost surely, 2^189300243 is an apocalyptic number.

189300243 is a deficient number, since it is larger than the sum of its proper divisors (86045613).

189300243 is a wasteful number, since it uses less digits than its factorization.

189300243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736385.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 189300243 is about 13758.6424839081. The cubic root of 189300243 is about 574.1830798758.

The spelling of 189300243 in words is "one hundred eighty-nine million, three hundred thousand, two hundred forty-three".