8145205 has 16 divisors (see below), whose sum is σ = 10422720. Its totient is φ = 6092928.

The previous prime is 8145173. The next prime is 8145209. The reversal of 8145205 is 5025418.

8145205 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8145205 - 2⁵ = 8145173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8145205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8145209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7369 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (651420).

Almost surely, 2^8145205 is an apocalyptic number.

It is an amenable number.

8145205 is a deficient number, since it is larger than the sum of its proper divisors (2277515).

8145205 is a wasteful number, since it uses less digits than its factorization.

8145205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 8145205 is about 2853.9805535427. The cubic root of 8145205 is about 201.2027936036.

The spelling of 8145205 in words is "eight million, one hundred forty-five thousand, two hundred five".