85586161 has 2 divisors, whose sum is σ = 85586162. Its totient is φ = 85586160.

The previous prime is 85586153. The next prime is 85586173. The reversal of 85586161 is 16168558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80550625 + 5035536 = 8975^2 + 2244^2 .

It is a cyclic number.

It is not a de Polignac number, because 85586161 - 2³ = 85586153 is a prime.

It is not a weakly prime, because it can be changed into another prime (85586101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42793080 + 42793081.

It is an arithmetic number, because the mean of its divisors is an integer number (42793081).

Almost surely, 2^85586161 is an apocalyptic number.

It is an amenable number.

85586161 is a deficient number, since it is larger than the sum of its proper divisors (1).

85586161 is an equidigital number, since it uses as much as digits as its factorization.

85586161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 40.

The square root of 85586161 is about 9251.2788845651. The cubic root of 85586161 is about 440.6913391457.

The spelling of 85586161 in words is "eighty-five million, five hundred eighty-six thousand, one hundred sixty-one".