130504530 has 64 divisors (see below), whose sum is σ = 351993600. Its totient is φ = 30725376.

The previous prime is 130504511. The next prime is 130504531. The reversal of 130504530 is 35405031.

It is a junction number, because it is equal to n+sod(n) for n = 130504497 and 130504506.

It is not an unprimeable number, because it can be changed into a prime (130504531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1696 + ... + 16244.

It is an arithmetic number, because the mean of its divisors is an integer number (5499900).

Almost surely, 2^130504530 is an apocalyptic number.

130504530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130504530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175996800).

130504530 is an abundant number, since it is smaller than the sum of its proper divisors (221489070).

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

130504530 is a wasteful number, since it uses less digits than its factorization.

130504530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14595.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 130504530 is about 11423.8579297889. The cubic root of 130504530 is about 507.2342012094.

Adding to 130504530 its reverse (35405031), we get a palindrome (165909561).

The spelling of 130504530 in words is "one hundred thirty million, five hundred four thousand, five hundred thirty".