8120530 has 16 divisors (see below), whose sum is σ = 15945984. Its totient is φ = 2952880.

The previous prime is 8120527. The next prime is 8120531. The reversal of 8120530 is 350218.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8120498 and 8120507.

It is not an unprimeable number, because it can be changed into a prime (8120531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36802 + ... + 37021.

It is an arithmetic number, because the mean of its divisors is an integer number (996624).

Almost surely, 2^8120530 is an apocalyptic number.

8120530 is a deficient number, since it is larger than the sum of its proper divisors (7825454).

8120530 is a wasteful number, since it uses less digits than its factorization.

8120530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73841.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 8120530 is about 2849.6543650064. The cubic root of 8120530 is about 200.9994142042. Note that the first 3 decimals are identical.

Adding to 8120530 its reverse (350218), we get a palindrome (8470748).

The spelling of 8120530 in words is "eight million, one hundred twenty thousand, five hundred thirty".