189461219 has 4 divisors (see below), whose sum is σ = 189512040. Its totient is φ = 189410400.

The previous prime is 189461191. The next prime is 189461227. The reversal of 189461219 is 912164981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189461219 - 2¹⁶ = 189395683 is a prime.

It is a super-2 number, since 2×189461219² = 71791107009931922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189461819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19334 + ... + 27435.

It is an arithmetic number, because the mean of its divisors is an integer number (47378010).

Almost surely, 2^189461219 is an apocalyptic number.

189461219 is a deficient number, since it is larger than the sum of its proper divisors (50821).

189461219 is an equidigital number, since it uses as much as digits as its factorization.

189461219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50820.

The product of its digits is 31104, while the sum is 41.

The square root of 189461219 is about 13764.4912365114. The cubic root of 189461219 is about 574.3457905454.

The spelling of 189461219 in words is "one hundred eighty-nine million, four hundred sixty-one thousand, two hundred nineteen".