131841920 has 64 divisors (see below), whose sum is σ = 360223200. Its totient is φ = 45201408.

The previous prime is 131841907. The next prime is 131841929. The reversal of 131841920 is 29148131.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131841929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10235 + ... + 19194.

Almost surely, 2^131841920 is an apocalyptic number.

131841920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131841920 is an abundant number, since it is smaller than the sum of its proper divisors (228381280).

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

131841920 is an equidigital number, since it uses as much as digits as its factorization.

131841920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29455 (or 29443 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 131841920 is about 11482.2436831832. The cubic root of 131841920 is about 508.9610014856.

The spelling of 131841920 in words is "one hundred thirty-one million, eight hundred forty-one thousand, nine hundred twenty".