854163143 has 2 divisors, whose sum is σ = 854163144. Its totient is φ = 854163142.

The previous prime is 854163133. The next prime is 854163151. The reversal of 854163143 is 341361458.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854163143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854163103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427081571 + 427081572.

It is an arithmetic number, because the mean of its divisors is an integer number (427081572).

Almost surely, 2^854163143 is an apocalyptic number.

854163143 is a deficient number, since it is larger than the sum of its proper divisors (1).

854163143 is an equidigital number, since it uses as much as digits as its factorization.

854163143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 854163143 is about 29226.0695783747. The cubic root of 854163143 is about 948.8122341387.

The spelling of 854163143 in words is "eight hundred fifty-four million, one hundred sixty-three thousand, one hundred forty-three".