8041138541 has 2 divisors, whose sum is σ = 8041138542. Its totient is φ = 8041138540.

The previous prime is 8041138513. The next prime is 8041138607. The reversal of 8041138541 is 1458311408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7156314025 + 884824516 = 84595^2 + 29746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8041138541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8041138141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4020569270 + 4020569271.

It is an arithmetic number, because the mean of its divisors is an integer number (4020569271).

Almost surely, 2^8041138541 is an apocalyptic number.

It is an amenable number.

8041138541 is a deficient number, since it is larger than the sum of its proper divisors (1).

8041138541 is an equidigital number, since it uses as much as digits as its factorization.

8041138541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 8041138541 is about 89672.3956465980. The cubic root of 8041138541 is about 2003.4223521625.

Adding to 8041138541 its reverse (1458311408), we get a palindrome (9499449949).

The spelling of 8041138541 in words is "eight billion, forty-one million, one hundred thirty-eight thousand, five hundred forty-one".