8173120 has 28 divisors (see below), whose sum is σ = 19463004. Its totient is φ = 3269120.

The previous prime is 8173117. The next prime is 8173127. The reversal of 8173120 is 213718.

It can be written as a sum of positive squares in 2 ways, for example, as 3297856 + 4875264 = 1816^2 + 2208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8173091 and 8173100.

It is not an unprimeable number, because it can be changed into a prime (8173127) 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 3 ways as a sum of consecutive naturals, for example, 12451 + ... + 13090.

Almost surely, 2^8173120 is an apocalyptic number.

8173120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8173120 is an abundant number, since it is smaller than the sum of its proper divisors (11289884).

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

8173120 is a wasteful number, since it uses less digits than its factorization.

8173120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25558 (or 25548 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 8173120 is about 2858.8669084097. The cubic root of 8173120 is about 201.4323835629.

Adding to 8173120 its reverse (213718), we get a palindrome (8386838).

The spelling of 8173120 in words is "eight million, one hundred seventy-three thousand, one hundred twenty".