189372219 has 8 divisors (see below), whose sum is σ = 255538752. Its totient is φ = 124726920.

The previous prime is 189372203. The next prime is 189372229. The reversal of 189372219 is 912273981.

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

It is not a de Polignac number, because 189372219 - 2⁴ = 189372203 is a prime.

It is a super-2 number, since 2×189372219² = 71723674657967922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189372229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380017 + ... + 380514.

It is an arithmetic number, because the mean of its divisors is an integer number (31942344).

Almost surely, 2^189372219 is an apocalyptic number.

189372219 is a deficient number, since it is larger than the sum of its proper divisors (66166533).

189372219 is an equidigital number, since it uses as much as digits as its factorization.

189372219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760617.

The product of its digits is 54432, while the sum is 42.

The square root of 189372219 is about 13761.2579003520. The cubic root of 189372219 is about 574.2558428826.

The spelling of 189372219 in words is "one hundred eighty-nine million, three hundred seventy-two thousand, two hundred nineteen".