8141491049 has 2 divisors, whose sum is σ = 8141491050. Its totient is φ = 8141491048.

The previous prime is 8141491037. The next prime is 8141491081. The reversal of 8141491049 is 9401941418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7791239824 + 350251225 = 88268^2 + 18715^2 .

It is a cyclic number.

It is not a de Polignac number, because 8141491049 - 2²⁰ = 8140442473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8141490997 and 8141491015.

It is not a weakly prime, because it can be changed into another prime (8141491019) 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 as a sum of consecutive naturals, namely, 4070745524 + 4070745525.

It is an arithmetic number, because the mean of its divisors is an integer number (4070745525).

Almost surely, 2^8141491049 is an apocalyptic number.

It is an amenable number.

8141491049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8141491049 is an equidigital number, since it uses as much as digits as its factorization.

8141491049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 8141491049 is about 90230.2113984003. The cubic root of 8141491049 is about 2011.7220829112.

The spelling of 8141491049 in words is "eight billion, one hundred forty-one million, four hundred ninety-one thousand, forty-nine".