8026540121 has 2 divisors, whose sum is σ = 8026540122. Its totient is φ = 8026540120.

The previous prime is 8026540117. The next prime is 8026540141. The reversal of 8026540121 is 1210456208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5359850521 + 2666689600 = 73211^2 + 51640^2 .

It is a cyclic number.

It is not a de Polignac number, because 8026540121 - 2² = 8026540117 is a prime.

It is not a weakly prime, because it can be changed into another prime (8026540141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4013270060 + 4013270061.

It is an arithmetic number, because the mean of its divisors is an integer number (4013270061).

Almost surely, 2^8026540121 is an apocalyptic number.

It is an amenable number.

8026540121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8026540121 is an equidigital number, since it uses as much as digits as its factorization.

8026540121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 8026540121 is about 89590.9600406202. The cubic root of 8026540121 is about 2002.2092354907.

Adding to 8026540121 its reverse (1210456208), we get a palindrome (9236996329).

The spelling of 8026540121 in words is "eight billion, twenty-six million, five hundred forty thousand, one hundred twenty-one".