189441361 has 8 divisors (see below), whose sum is σ = 196961184. Its totient is φ = 182059680.

The previous prime is 189441337. The next prime is 189441377. The reversal of 189441361 is 163144981.

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

It is not a de Polignac number, because 189441361 - 2⁷ = 189441233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189441361.

It is not an unprimeable number, because it can be changed into a prime (189441061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31735 + ... + 37228.

It is an arithmetic number, because the mean of its divisors is an integer number (24620148).

Almost surely, 2^189441361 is an apocalyptic number.

It is an amenable number.

189441361 is a deficient number, since it is larger than the sum of its proper divisors (7519823).

189441361 is an equidigital number, since it uses as much as digits as its factorization.

189441361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69071.

The product of its digits is 20736, while the sum is 37.

The square root of 189441361 is about 13763.7698687533. The cubic root of 189441361 is about 574.3257235413.

The spelling of 189441361 in words is "one hundred eighty-nine million, four hundred forty-one thousand, three hundred sixty-one".