189206017 has 16 divisors (see below), whose sum is σ = 254040192. Its totient is φ = 136091520.

The previous prime is 189205993. The next prime is 189206033. The reversal of 189206017 is 710602981.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 189206017 - 2¹¹ = 189203969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189206117) 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, 93508 + ... + 95509.

It is an arithmetic number, because the mean of its divisors is an integer number (15877512).

Almost surely, 2^189206017 is an apocalyptic number.

It is an amenable number.

189206017 is a deficient number, since it is larger than the sum of its proper divisors (64834175).

189206017 is a wasteful number, since it uses less digits than its factorization.

189206017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189048.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 189206017 is about 13755.2178099803. The cubic root of 189206017 is about 574.0877956978.

Adding to 189206017 its reverse (710602981), we get a palindrome (899808998).

The spelling of 189206017 in words is "one hundred eighty-nine million, two hundred six thousand, seventeen".