85022143 has 2 divisors, whose sum is σ = 85022144. Its totient is φ = 85022142.

The previous prime is 85022141. The next prime is 85022159. The reversal of 85022143 is 34122058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85022143 - 2¹ = 85022141 is a prime.

Together with 85022141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85022141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42511071 + 42511072.

It is an arithmetic number, because the mean of its divisors is an integer number (42511072).

Almost surely, 2^85022143 is an apocalyptic number.

85022143 is a deficient number, since it is larger than the sum of its proper divisors (1).

85022143 is an equidigital number, since it uses as much as digits as its factorization.

85022143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 85022143 is about 9220.7452518763. The cubic root of 85022143 is about 439.7211439007.

The spelling of 85022143 in words is "eighty-five million, twenty-two thousand, one hundred forty-three".