8402543141 has 2 divisors, whose sum is σ = 8402543142. Its totient is φ = 8402543140.

The previous prime is 8402543117. The next prime is 8402543153. The reversal of 8402543141 is 1413452048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8111704225 + 290838916 = 90065^2 + 17054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8402543141 is a prime.

It is a super-2 number, since 2×8402543141² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8402543098 and 8402543107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8402543101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4201271570 + 4201271571.

It is an arithmetic number, because the mean of its divisors is an integer number (4201271571).

Almost surely, 2^8402543141 is an apocalyptic number.

It is an amenable number.

8402543141 is a deficient number, since it is larger than the sum of its proper divisors (1).

8402543141 is an equidigital number, since it uses as much as digits as its factorization.

8402543141 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 32.

The square root of 8402543141 is about 91665.3868207624. The cubic root of 8402543141 is about 2032.9978389022.

Adding to 8402543141 its reverse (1413452048), we get a palindrome (9815995189).

The spelling of 8402543141 in words is "eight billion, four hundred two million, five hundred forty-three thousand, one hundred forty-one".