8520130 has 8 divisors (see below), whose sum is σ = 15336252. Its totient is φ = 3408048.

The previous prime is 8520107. The next prime is 8520139. The reversal of 8520130 is 310258.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8415801 + 104329 = 2901^2 + 323^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8520098 and 8520107.

It is not an unprimeable number, because it can be changed into a prime (8520139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425997 + ... + 426016.

Almost surely, 2^8520130 is an apocalyptic number.

8520130 is a deficient number, since it is larger than the sum of its proper divisors (6816122).

8520130 is a wasteful number, since it uses less digits than its factorization.

8520130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852020.

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

The square root of 8520130 is about 2918.9261724134. The cubic root of 8520130 is about 204.2437334123.

Adding to 8520130 its reverse (310258), we get a palindrome (8830388).

The spelling of 8520130 in words is "eight million, five hundred twenty thousand, one hundred thirty".