131840080 has 20 divisors (see below), whose sum is σ = 306528372. Its totient is φ = 52736000.

The previous prime is 131840039. The next prime is 131840081. The reversal of 131840080 is 80048131.

It can be written as a sum of positive squares in 2 ways, for example, as 29506624 + 102333456 = 5432^2 + 10116^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131840081) 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, 823921 + ... + 824080.

Almost surely, 2^131840080 is an apocalyptic number.

131840080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131840080 is an abundant number, since it is smaller than the sum of its proper divisors (174688292).

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

131840080 is a wasteful number, since it uses less digits than its factorization.

131840080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648014 (or 1648008 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 131840080 is about 11482.1635591904. The cubic root of 131840080 is about 508.9586337698.

The spelling of 131840080 in words is "one hundred thirty-one million, eight hundred forty thousand, eighty".