189164063 has 4 divisors (see below), whose sum is σ = 206360808. Its totient is φ = 171967320.

The previous prime is 189164051. The next prime is 189164069. The reversal of 189164063 is 360461981.

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 189164063 - 2¹⁸ = 188901919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189164069) 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, 8598356 + ... + 8598377.

It is an arithmetic number, because the mean of its divisors is an integer number (51590202).

Almost surely, 2^189164063 is an apocalyptic number.

189164063 is a deficient number, since it is larger than the sum of its proper divisors (17196745).

189164063 is a wasteful number, since it uses less digits than its factorization.

189164063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17196744.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 189164063 is about 13753.6927041431. The cubic root of 189164063 is about 574.0453603669.

The spelling of 189164063 in words is "one hundred eighty-nine million, one hundred sixty-four thousand, sixty-three".