8165225 has 6 divisors (see below), whose sum is σ = 10124910. Its totient is φ = 6532160.

The previous prime is 8165221. The next prime is 8165239. The reversal of 8165225 is 5225618.

8165225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 896809 + 7268416 = 947^2 + 2696^2 .

It is not a de Polignac number, because 8165225 - 2² = 8165221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8165221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163280 + ... + 163329.

It is an arithmetic number, because the mean of its divisors is an integer number (1687485).

Almost surely, 2^8165225 is an apocalyptic number.

It is an amenable number.

8165225 is a deficient number, since it is larger than the sum of its proper divisors (1959685).

8165225 is a wasteful number, since it uses less digits than its factorization.

8165225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326619 (or 326614 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 8165225 is about 2857.4857829918. The cubic root of 8165225 is about 201.3675033618.

The spelling of 8165225 in words is "eight million, one hundred sixty-five thousand, two hundred twenty-five".