131266560 has 96 divisors (see below), whose sum is σ = 420048720. Its totient is φ = 34996224.

The previous prime is 131266549. The next prime is 131266567. The reversal of 131266560 is 65662131.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131266567) 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, 28584 + ... + 32856.

Almost surely, 2^131266560 is an apocalyptic number.

131266560 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 131266560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210024360).

131266560 is an abundant number, since it is smaller than the sum of its proper divisors (288782160).

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

131266560 is an equidigital number, since it uses as much as digits as its factorization.

131266560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303 (or 4283 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 131266560 is about 11457.1619522463. The cubic root of 131266560 is about 508.2195508720.

The spelling of 131266560 in words is "one hundred thirty-one million, two hundred sixty-six thousand, five hundred sixty".