130544530 has 16 divisors (see below), whose sum is σ = 248802840. Its totient is φ = 49146112.

The previous prime is 130544509. The next prime is 130544537. The reversal of 130544530 is 35445031.

It can be written as a sum of positive squares in 4 ways, for example, as 119180889 + 11363641 = 10917^2 + 3371^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130544495 and 130544504.

It is not an unprimeable number, because it can be changed into a prime (130544537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383785 + ... + 384124.

Almost surely, 2^130544530 is an apocalyptic number.

130544530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130544530 is a deficient number, since it is larger than the sum of its proper divisors (118258310).

130544530 is a wasteful number, since it uses less digits than its factorization.

130544530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767933.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 130544530 is about 11425.6085177114. The cubic root of 130544530 is about 507.2860188116.

Adding to 130544530 its reverse (35445031), we get a palindrome (165989561).

The spelling of 130544530 in words is "one hundred thirty million, five hundred forty-four thousand, five hundred thirty".