189531674 has 16 divisors (see below), whose sum is σ = 301758696. Its totient is φ = 88972800.

The previous prime is 189531653. The next prime is 189531679. The reversal of 189531674 is 476135981.

It can be written as a sum of positive squares in 4 ways, for example, as 178356025 + 11175649 = 13355^2 + 3343^2 .

It is not an unprimeable number, because it can be changed into a prime (189531679) 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 7 ways as a sum of consecutive naturals, for example, 7694 + ... + 20934.

Almost surely, 2^189531674 is an apocalyptic number.

189531674 is a deficient number, since it is larger than the sum of its proper divisors (112227022).

189531674 is a wasteful number, since it uses less digits than its factorization.

189531674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13681.

The product of its digits is 181440, while the sum is 44.

The square root of 189531674 is about 13767.0503013536. The cubic root of 189531674 is about 574.4169757690.

The spelling of 189531674 in words is "one hundred eighty-nine million, five hundred thirty-one thousand, six hundred seventy-four".