189652018 has 4 divisors (see below), whose sum is σ = 284478030. Its totient is φ = 94826008.

The previous prime is 189651991. The next prime is 189652031. The reversal of 189652018 is 810256981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810256981 = 18097 ⋅44773.

It can be written as a sum of positive squares in only one way, i.e., 186240609 + 3411409 = 13647^2 + 1847^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47413003 + ... + 47413006.

Almost surely, 2^189652018 is an apocalyptic number.

189652018 is a deficient number, since it is larger than the sum of its proper divisors (94826012).

189652018 is an equidigital number, since it uses as much as digits as its factorization.

189652018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94826011.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 189652018 is about 13771.4203334297. The cubic root of 189652018 is about 574.5385262717.

The spelling of 189652018 in words is "one hundred eighty-nine million, six hundred fifty-two thousand, eighteen".