6165220 has 24 divisors (see below), whose sum is σ = 13709304. Its totient is φ = 2320896.

The previous prime is 6165217. The next prime is 6165221. The reversal of 6165220 is 225616.

It can be written as a sum of positive squares in 4 ways, for example, as 1048576 + 5116644 = 1024^2 + 2262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6165191 and 6165200.

It is not an unprimeable number, because it can be changed into a prime (6165221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8727 + ... + 9406.

It is an arithmetic number, because the mean of its divisors is an integer number (571221).

Almost surely, 2^6165220 is an apocalyptic number.

It is an amenable number.

6165220 is an abundant number, since it is smaller than the sum of its proper divisors (7544084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6165220 is a wasteful number, since it uses less digits than its factorization.

6165220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18159 (or 18157 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 6165220 is about 2482.9861054786. The cubic root of 6165220 is about 183.3648944746.

The spelling of 6165220 in words is "six million, one hundred sixty-five thousand, two hundred twenty".