189743163 has 4 divisors (see below), whose sum is σ = 252990888. Its totient is φ = 126495440.

The previous prime is 189743161. The next prime is 189743189. The reversal of 189743163 is 361347981.

189743163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 189743163 - 2¹ = 189743161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189743161) 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, 31623858 + ... + 31623863.

It is an arithmetic number, because the mean of its divisors is an integer number (63247722).

Almost surely, 2^189743163 is an apocalyptic number.

189743163 is a deficient number, since it is larger than the sum of its proper divisors (63247725).

189743163 is an equidigital number, since it uses as much as digits as its factorization.

189743163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63247724.

The product of its digits is 108864, while the sum is 42.

The square root of 189743163 is about 13774.7291443425. The cubic root of 189743163 is about 574.6305508260.

The spelling of 189743163 in words is "one hundred eighty-nine million, seven hundred forty-three thousand, one hundred sixty-three".