841194521 has 2 divisors, whose sum is σ = 841194522. Its totient is φ = 841194520.

The previous prime is 841194421. The next prime is 841194551. The reversal of 841194521 is 125491148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 798684121 + 42510400 = 28261^2 + 6520^2 .

It is a cyclic number.

It is not a de Polignac number, because 841194521 - 2¹⁴ = 841178137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (841194551) 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 as a sum of consecutive naturals, namely, 420597260 + 420597261.

It is an arithmetic number, because the mean of its divisors is an integer number (420597261).

Almost surely, 2^841194521 is an apocalyptic number.

It is an amenable number.

841194521 is a deficient number, since it is larger than the sum of its proper divisors (1).

841194521 is an equidigital number, since it uses as much as digits as its factorization.

841194521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 35.

The square root of 841194521 is about 29003.3536164355. The cubic root of 841194521 is about 943.9858369661.

The spelling of 841194521 in words is "eight hundred forty-one million, one hundred ninety-four thousand, five hundred twenty-one".