131332160 has 28 divisors (see below), whose sum is σ = 312735468. Its totient is φ = 52532736.

The previous prime is 131332133. The next prime is 131332177. The reversal of 131332160 is 61233131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22505536 + 108826624 = 4744^2 + 10432^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (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, 204887 + ... + 205526.

Almost surely, 2^131332160 is an apocalyptic number.

131332160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131332160 is an abundant number, since it is smaller than the sum of its proper divisors (181403308).

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

131332160 is an equidigital number, since it uses as much as digits as its factorization.

131332160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410430 (or 410420 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 131332160 is about 11460.0244327837. The cubic root of 131332160 is about 508.3041970819.

Adding to 131332160 its reverse (61233131), we get a palindrome (192565291).

The spelling of 131332160 in words is "one hundred thirty-one million, three hundred thirty-two thousand, one hundred sixty".