131580560 has 20 divisors (see below), whose sum is σ = 305924988. Its totient is φ = 52632192.

The previous prime is 131580557. The next prime is 131580571. The reversal of 131580560 is 65085131.

131580560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 44568976 + 87011584 = 6676^2 + 9328^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822299 + ... + 822458.

Almost surely, 2^131580560 is an apocalyptic number.

131580560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131580560 is an abundant number, since it is smaller than the sum of its proper divisors (174344428).

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

131580560 is a wasteful number, since it uses less digits than its factorization.

131580560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644770 (or 1644764 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 131580560 is about 11470.8569862936. The cubic root of 131580560 is about 508.6244619790.

The spelling of 131580560 in words is "one hundred thirty-one million, five hundred eighty thousand, five hundred sixty".