131055240 has 32 divisors (see below), whose sum is σ = 393166080. Its totient is φ = 34948032.

The previous prime is 131055209. The next prime is 131055241. The reversal of 131055240 is 42550131.

131055240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (131055241) 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, 545944 + ... + 546183.

It is an arithmetic number, because the mean of its divisors is an integer number (12286440).

Almost surely, 2^131055240 is an apocalyptic number.

131055240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131055240 is an abundant number, since it is smaller than the sum of its proper divisors (262110840).

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

131055240 is a wasteful number, since it uses less digits than its factorization.

131055240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092141 (or 1092137 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 131055240 is about 11447.9360585216. The cubic root of 131055240 is about 507.9466846314.

The spelling of 131055240 in words is "one hundred thirty-one million, fifty-five thousand, two hundred forty".