9841235249 has 2 divisors, whose sum is σ = 9841235250. Its totient is φ = 9841235248.

The previous prime is 9841235203. The next prime is 9841235267. The reversal of 9841235249 is 9425321489.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9318427024 + 522808225 = 96532^2 + 22865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9841235249 is a prime.

It is a super-2 number, since 2×9841235249² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9841235749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920617624 + 4920617625.

It is an arithmetic number, because the mean of its divisors is an integer number (4920617625).

Almost surely, 2^9841235249 is an apocalyptic number.

It is an amenable number.

9841235249 is a deficient number, since it is larger than the sum of its proper divisors (1).

9841235249 is an equidigital number, since it uses as much as digits as its factorization.

9841235249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 9841235249 is about 99203.0002016068. Note that the first 3 decimals coincide. The cubic root of 9841235249 is about 2142.9722034317.

The spelling of 9841235249 in words is "nine billion, eight hundred forty-one million, two hundred thirty-five thousand, two hundred forty-nine".