8160205 has 4 divisors (see below), whose sum is σ = 9792252. Its totient is φ = 6528160.

The previous prime is 8160199. The next prime is 8160209. The reversal of 8160205 is 5020618.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5020618 = 2 ⋅2510309.

It can be written as a sum of positive squares in 2 ways, for example, as 4247721 + 3912484 = 2061^2 + 1978^2 .

It is not a de Polignac number, because 8160205 - 2³ = 8160197 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8160209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816016 + ... + 816025.

It is an arithmetic number, because the mean of its divisors is an integer number (2448063).

Almost surely, 2^8160205 is an apocalyptic number.

It is an amenable number.

8160205 is a deficient number, since it is larger than the sum of its proper divisors (1632047).

8160205 is a wasteful number, since it uses less digits than its factorization.

8160205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632046.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 8160205 is about 2856.6072533689. The cubic root of 8160205 is about 201.3262278265.

The spelling of 8160205 in words is "eight million, one hundred sixty thousand, two hundred five".