85160857 has 2 divisors, whose sum is σ = 85160858. Its totient is φ = 85160856.

The previous prime is 85160843. The next prime is 85160891. The reversal of 85160857 is 75806158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84566416 + 594441 = 9196^2 + 771^2 .

It is a cyclic number.

It is not a de Polignac number, because 85160857 - 2¹⁹ = 84636569 is a prime.

It is not a weakly prime, because it can be changed into another prime (85160057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42580428 + 42580429.

It is an arithmetic number, because the mean of its divisors is an integer number (42580429).

Almost surely, 2^85160857 is an apocalyptic number.

It is an amenable number.

85160857 is a deficient number, since it is larger than the sum of its proper divisors (1).

85160857 is an equidigital number, since it uses as much as digits as its factorization.

85160857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 85160857 is about 9228.2640295995. The cubic root of 85160857 is about 439.9601496278.

The spelling of 85160857 in words is "eighty-five million, one hundred sixty thousand, eight hundred fifty-seven".