8230040261 has 2 divisors, whose sum is σ = 8230040262. Its totient is φ = 8230040260.

The previous prime is 8230040237. The next prime is 8230040281. The reversal of 8230040261 is 1620400328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7548308161 + 681732100 = 86881^2 + 26110^2 .

It is a cyclic number.

It is not a de Polignac number, because 8230040261 - 2³⁰ = 7156298437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8230040261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8230040201) 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, 4115020130 + 4115020131.

It is an arithmetic number, because the mean of its divisors is an integer number (4115020131).

Almost surely, 2^8230040261 is an apocalyptic number.

It is an amenable number.

8230040261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8230040261 is an equidigital number, since it uses as much as digits as its factorization.

8230040261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 8230040261 is about 90719.5693387044. The cubic root of 8230040261 is about 2018.9891571010.

Adding to 8230040261 its reverse (1620400328), we get a palindrome (9850440589).

The spelling of 8230040261 in words is "eight billion, two hundred thirty million, forty thousand, two hundred sixty-one".