189061663 has 6 divisors (see below), whose sum is σ = 216112056. Its totient is φ = 162021672.

The previous prime is 189061661. The next prime is 189061673. The reversal of 189061663 is 366160981.

It is not a de Polignac number, because 189061663 - 2¹ = 189061661 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 (189061661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33781 + ... + 38977.

It is an arithmetic number, because the mean of its divisors is an integer number (36018676).

Almost surely, 2^189061663 is an apocalyptic number.

189061663 is a deficient number, since it is larger than the sum of its proper divisors (27050393).

189061663 is an frugal number, since it uses more digits than its factorization.

189061663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401 (or 5204 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 189061663 is about 13749.9695636027. The cubic root of 189061663 is about 573.9417591966.

The spelling of 189061663 in words is "one hundred eighty-nine million, sixty-one thousand, six hundred sixty-three".