189088163 has 4 divisors (see below), whose sum is σ = 206278008. Its totient is φ = 171898320.

The previous prime is 189088139. The next prime is 189088169. The reversal of 189088163 is 361880981.

It is a happy number.

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

It is not a de Polignac number, because 189088163 - 2¹⁶ = 189022627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189088169) 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, 8594906 + ... + 8594927.

It is an arithmetic number, because the mean of its divisors is an integer number (51569502).

Almost surely, 2^189088163 is an apocalyptic number.

189088163 is a deficient number, since it is larger than the sum of its proper divisors (17189845).

189088163 is a wasteful number, since it uses less digits than its factorization.

189088163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17189844.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 189088163 is about 13750.9331683344. The cubic root of 189088163 is about 573.9685736334.

The spelling of 189088163 in words is "one hundred eighty-nine million, eighty-eight thousand, one hundred sixty-three".