130512528 has 60 divisors (see below), whose sum is σ = 377860860. Its totient is φ = 42002688.

The previous prime is 130512517. The next prime is 130512533. The reversal of 130512528 is 825215031.

It is a happy number.

130512528 is a `hidden beast` number, since 130 + 5 + 1 + 2 + 528 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 74442384 + 56070144 = 8628^2 + 7488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11451 + ... + 19802.

It is an arithmetic number, because the mean of its divisors is an integer number (6297681).

Almost surely, 2^130512528 is an apocalyptic number.

130512528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

130512528 is an abundant number, since it is smaller than the sum of its proper divisors (247348332).

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

130512528 is a wasteful number, since it uses less digits than its factorization.

130512528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31296 (or 31287 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 130512528 is about 11424.2079813001. The cubic root of 130512528 is about 507.2445629857.

Adding to 130512528 its reverse (825215031), we get a palindrome (955727559).

The spelling of 130512528 in words is "one hundred thirty million, five hundred twelve thousand, five hundred twenty-eight".