131041340 has 48 divisors (see below), whose sum is σ = 285567744. Its totient is φ = 50457600.

The previous prime is 131041303. The next prime is 131041349. The reversal of 131041340 is 43140131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131041349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148982 + ... + 149858.

It is an arithmetic number, because the mean of its divisors is an integer number (5949328).

Almost surely, 2^131041340 is an apocalyptic number.

131041340 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 131041340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142783872).

131041340 is an abundant number, since it is smaller than the sum of its proper divisors (154526404).

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

131041340 is a wasteful number, since it uses less digits than its factorization.

131041340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131041340 is about 11447.3289460904. The cubic root of 131041340 is about 507.9287260246.

Adding to 131041340 its reverse (43140131), we get a palindrome (174181471).

The spelling of 131041340 in words is "one hundred thirty-one million, forty-one thousand, three hundred forty".