85146571 has 2 divisors, whose sum is σ = 85146572. Its totient is φ = 85146570.

The previous prime is 85146559. The next prime is 85146587. The reversal of 85146571 is 17564158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85146571 - 2⁵ = 85146539 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85146571.

It is not a weakly prime, because it can be changed into another prime (85146511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42573285 + 42573286.

It is an arithmetic number, because the mean of its divisors is an integer number (42573286).

Almost surely, 2^85146571 is an apocalyptic number.

85146571 is a deficient number, since it is larger than the sum of its proper divisors (1).

85146571 is an equidigital number, since it uses as much as digits as its factorization.

85146571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 37.

The square root of 85146571 is about 9227.4899620644. The cubic root of 85146571 is about 439.9355466885.

The spelling of 85146571 in words is "eighty-five million, one hundred forty-six thousand, five hundred seventy-one".