189791041 has 6 divisors (see below), whose sum is σ = 208613426. Its totient is φ = 172537200.

The previous prime is 189791033. The next prime is 189791059. The reversal of 189791041 is 140197981.

It can be written as a sum of positive squares in only one way, i.e., 187553025 + 2238016 = 13695^2 + 1496^2 .

It is not a de Polignac number, because 189791041 - 2³ = 189791033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189790985 and 189791003.

It is not an unprimeable number, because it can be changed into a prime (189791081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 784140 + ... + 784381.

Almost surely, 2^189791041 is an apocalyptic number.

189791041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

189791041 is a deficient number, since it is larger than the sum of its proper divisors (18822385).

189791041 is a wasteful number, since it uses less digits than its factorization.

189791041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568543 (or 1568532 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 189791041 is about 13776.4669273366. The cubic root of 189791041 is about 574.6788790457.

The spelling of 189791041 in words is "one hundred eighty-nine million, seven hundred ninety-one thousand, forty-one".