130561536 has 80 divisors (see below), whose sum is σ = 397545984. Its totient is φ = 37300224.

The previous prime is 130561531. The next prime is 130561579. The reversal of 130561536 is 635165031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130561531) 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, 4681 + ... + 16823.

Almost surely, 2^130561536 is an apocalyptic number.

130561536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130561536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198772992).

130561536 is an abundant number, since it is smaller than the sum of its proper divisors (266984448).

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

130561536 is an equidigital number, since it uses as much as digits as its factorization.

130561536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12171 (or 12155 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 130561536 is about 11426.3526989149. The cubic root of 130561536 is about 507.3080458585.

The spelling of 130561536 in words is "one hundred thirty million, five hundred sixty-one thousand, five hundred thirty-six".