130528644 has 24 divisors (see below), whose sum is σ = 304771488. Its totient is φ = 43480320.

The previous prime is 130528633. The next prime is 130528649. The reversal of 130528644 is 446825031.

130528644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (130528649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22359 + ... + 27585.

It is an arithmetic number, because the mean of its divisors is an integer number (12698812).

Almost surely, 2^130528644 is an apocalyptic number.

It is an amenable number.

130528644 is an abundant number, since it is smaller than the sum of its proper divisors (174242844).

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

130528644 is a wasteful number, since it uses less digits than its factorization.

130528644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7315 (or 7313 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 130528644 is about 11424.9133038286. The cubic root of 130528644 is about 507.2654407182.

The spelling of 130528644 in words is "one hundred thirty million, five hundred twenty-eight thousand, six hundred forty-four".