189348605 has 8 divisors (see below), whose sum is σ = 228103992. Its totient is φ = 150888448.

The previous prime is 189348583. The next prime is 189348629. The reversal of 189348605 is 506843981.

It can be written as a sum of positive squares in 4 ways, for example, as 21335161 + 168013444 = 4619^2 + 12962^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189348605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72392 + ... + 74961.

It is an arithmetic number, because the mean of its divisors is an integer number (28512999).

Almost surely, 2^189348605 is an apocalyptic number.

It is an amenable number.

189348605 is a deficient number, since it is larger than the sum of its proper divisors (38755387).

189348605 is a wasteful number, since it uses less digits than its factorization.

189348605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147615.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 189348605 is about 13760.3998851778. The cubic root of 189348605 is about 574.2319727126.

The spelling of 189348605 in words is "one hundred eighty-nine million, three hundred forty-eight thousand, six hundred five".