189909041 has 4 divisors (see below), whose sum is σ = 217038912. Its totient is φ = 162779172.

The previous prime is 189909011. The next prime is 189909053. The reversal of 189909041 is 140909981.

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.

It is a cyclic number.

It is not a de Polignac number, because 189909041 - 2¹⁴ = 189892657 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 189909041.

It is not an unprimeable number, because it can be changed into a prime (189909011) 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, 13564925 + ... + 13564938.

It is an arithmetic number, because the mean of its divisors is an integer number (54259728).

Almost surely, 2^189909041 is an apocalyptic number.

It is an amenable number.

189909041 is a deficient number, since it is larger than the sum of its proper divisors (27129871).

189909041 is an equidigital number, since it uses as much as digits as its factorization.

189909041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27129870.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 189909041 is about 13780.7489273987. The cubic root of 189909041 is about 574.7979539652.

The spelling of 189909041 in words is "one hundred eighty-nine million, nine hundred nine thousand, forty-one".