189555941 has 4 divisors (see below), whose sum is σ = 189583584. Its totient is φ = 189528300.

The previous prime is 189555937. The next prime is 189555943. The reversal of 189555941 is 149555981.

It is a happy number.

189555941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 189555941 - 2² = 189555937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189555943) 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, 5096 + ... + 20126.

It is an arithmetic number, because the mean of its divisors is an integer number (47395896).

Almost surely, 2^189555941 is an apocalyptic number.

It is an amenable number.

189555941 is a deficient number, since it is larger than the sum of its proper divisors (27643).

189555941 is a wasteful number, since it uses less digits than its factorization.

189555941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27642.

The product of its digits is 324000, while the sum is 47.

The square root of 189555941 is about 13767.9316166227. The cubic root of 189555941 is about 574.4414901973.

The spelling of 189555941 in words is "one hundred eighty-nine million, five hundred fifty-five thousand, nine hundred forty-one".