521600130 has 48 divisors (see below), whose sum is σ = 1361018880. Its totient is φ = 138595104.

The previous prime is 521600129. The next prime is 521600143. The reversal of 521600130 is 31006125.

521600130 is a `hidden beast` number, since 52 + 1 + 600 + 13 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15231 + ... + 35709.

It is an arithmetic number, because the mean of its divisors is an integer number (28354560).

Almost surely, 2^521600130 is an apocalyptic number.

521600130 is an abundant number, since it is smaller than the sum of its proper divisors (839418750).

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

521600130 is a wasteful number, since it uses less digits than its factorization.

521600130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20775 (or 20772 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 521600130 is about 22838.5667238555. The cubic root of 521600130 is about 804.9691383819.

Adding to 521600130 its reverse (31006125), we get a palindrome (552606255).

The spelling of 521600130 in words is "five hundred twenty-one million, six hundred thousand, one hundred thirty".