131108560 has 80 divisors (see below), whose sum is σ = 334264320. Its totient is φ = 47429120.

The previous prime is 131108519. The next prime is 131108587. The reversal of 131108560 is 65801131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336846 + ... + 337234.

It is an arithmetic number, because the mean of its divisors is an integer number (4178304).

Almost surely, 2^131108560 is an apocalyptic number.

131108560 is a gapful number since it is divisible by the number (10) 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 131108560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167132160).

131108560 is an abundant number, since it is smaller than the sum of its proper divisors (203155760).

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

131108560 is a wasteful number, since it uses less digits than its factorization.

131108560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 131108560 is about 11450.2646257630. The cubic root of 131108560 is about 508.0155615544.

Adding to 131108560 its reverse (65801131), we get a palindrome (196909691).

The spelling of 131108560 in words is "one hundred thirty-one million, one hundred eight thousand, five hundred sixty".