8642857141 has 2 divisors, whose sum is σ = 8642857142. Its totient is φ = 8642857140.

The previous prime is 8642857129. The next prime is 8642857159. The reversal of 8642857141 is 1417582468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5943639025 + 2699218116 = 77095^2 + 51954^2 .

It is a cyclic number.

It is not a de Polignac number, because 8642857141 - 2¹⁷ = 8642726069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8642857091 and 8642857100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8642857241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321428570 + 4321428571.

It is an arithmetic number, because the mean of its divisors is an integer number (4321428571).

Almost surely, 2^8642857141 is an apocalyptic number.

It is an amenable number.

8642857141 is a deficient number, since it is larger than the sum of its proper divisors (1).

8642857141 is an equidigital number, since it uses as much as digits as its factorization.

8642857141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 46.

The square root of 8642857141 is about 92966.9680101486. The cubic root of 8642857141 is about 2052.1972982317.

The spelling of 8642857141 in words is "eight billion, six hundred forty-two million, eight hundred fifty-seven thousand, one hundred forty-one".