131310340 has 48 divisors (see below), whose sum is σ = 316399104. Its totient is φ = 44841600.

The previous prime is 131310337. The next prime is 131310359. The reversal of 131310340 is 43013131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36210 + ... + 39670.

It is an arithmetic number, because the mean of its divisors is an integer number (6591648).

Almost surely, 2^131310340 is an apocalyptic number.

131310340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131310340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158199552).

131310340 is an abundant number, since it is smaller than the sum of its proper divisors (185088764).

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

131310340 is a wasteful number, since it uses less digits than its factorization.

131310340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748 (or 3746 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131310340 is about 11459.0723882869. The cubic root of 131310340 is about 508.2760450235.

Adding to 131310340 its reverse (43013131), we get a palindrome (174323471).

The spelling of 131310340 in words is "one hundred thirty-one million, three hundred ten thousand, three hundred forty".