9824020181 has 2 divisors, whose sum is σ = 9824020182. Its totient is φ = 9824020180.

The previous prime is 9824020159. The next prime is 9824020201. The reversal of 9824020181 is 1810204289.

9824020181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8973772900 + 850247281 = 94730^2 + 29159^2 .

It is an emirp because it is prime and its reverse (1810204289) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9824020181 - 2¹⁴ = 9824003797 is a prime.

It is a super-2 number, since 2×9824020181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9824029181) 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, 4912010090 + 4912010091.

It is an arithmetic number, because the mean of its divisors is an integer number (4912010091).

Almost surely, 2^9824020181 is an apocalyptic number.

It is an amenable number.

9824020181 is a deficient number, since it is larger than the sum of its proper divisors (1).

9824020181 is an equidigital number, since it uses as much as digits as its factorization.

9824020181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 9824020181 is about 99116.1953517184. The cubic root of 9824020181 is about 2141.7219218926.

The spelling of 9824020181 in words is "nine billion, eight hundred twenty-four million, twenty thousand, one hundred eighty-one".