189247205 has 8 divisors (see below), whose sum is σ = 259539072. Its totient is φ = 129769488.

The previous prime is 189247189. The next prime is 189247229. The reversal of 189247205 is 502742981.

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

It is a cyclic number.

It is not a de Polignac number, because 189247205 - 2⁴ = 189247189 is a prime.

It is a super-3 number, since 3×189247205³ (a number of 26 digits) contains 333 as substring.

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, 2703497 + ... + 2703566.

It is an arithmetic number, because the mean of its divisors is an integer number (32442384).

Almost surely, 2^189247205 is an apocalyptic number.

It is an amenable number.

189247205 is a deficient number, since it is larger than the sum of its proper divisors (70291867).

189247205 is an equidigital number, since it uses as much as digits as its factorization.

189247205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407075.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 189247205 is about 13756.7149058196. The cubic root of 189247205 is about 574.1294501387.

The spelling of 189247205 in words is "one hundred eighty-nine million, two hundred forty-seven thousand, two hundred five".