131680 has 24 divisors (see below), whose sum is σ = 311472. Its totient is φ = 52608.

The previous prime is 131671. The next prime is 131687. The reversal of 131680 is 86131.

131680 = T₂₂₇ + T₂₂₈ + ... + T₂₃₁.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252 + ... + 571.

It is an arithmetic number, because the mean of its divisors is an integer number (12978).

2¹³¹⁶⁸⁰ is an apocalyptic number.

131680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131680 is an abundant number, since it is smaller than the sum of its proper divisors (179792).

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

131680 is an equidigital number, since it uses as much as digits as its factorization.

131680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 131680 is about 362.8773897613. The cubic root of 131680 is about 50.8752558107.

The spelling of 131680 in words is "one hundred thirty-one thousand, six hundred eighty".