8481333149 has 2 divisors, whose sum is σ = 8481333150. Its totient is φ = 8481333148.

The previous prime is 8481333137. The next prime is 8481333163. The reversal of 8481333149 is 9413331848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5704780900 + 2776552249 = 75530^2 + 52693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8481333149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8481333199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4240666574 + 4240666575.

It is an arithmetic number, because the mean of its divisors is an integer number (4240666575).

Almost surely, 2^8481333149 is an apocalyptic number.

It is an amenable number.

8481333149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8481333149 is an equidigital number, since it uses as much as digits as its factorization.

8481333149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 44.

The square root of 8481333149 is about 92094.1537178121. The cubic root of 8481333149 is about 2039.3325021234.

The spelling of 8481333149 in words is "eight billion, four hundred eighty-one million, three hundred thirty-three thousand, one hundred forty-nine".