130928562 has 90 divisors (see below), whose sum is σ = 313959789. Its totient is φ = 40778640.

The previous prime is 130928549. The next prime is 130928569. The reversal of 130928562 is 265829031.

130928562 is a `hidden beast` number, since 1 + 3 + 0 + 92 + 8 + 562 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 130850721 + 77841 = 11439^2 + 279^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8091.

It is not an unprimeable number, because it can be changed into a prime (130928569) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4223487 + ... + 4223517.

Almost surely, 2^130928562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130928562

130928562 is an abundant number, since it is smaller than the sum of its proper divisors (183031227).

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

130928562 is an equidigital number, since it uses as much as digits as its factorization.

130928562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 130928562 is about 11442.4019331607. The cubic root of 130928562 is about 507.7829714434.

The spelling of 130928562 in words is "one hundred thirty million, nine hundred twenty-eight thousand, five hundred sixty-two".