131440741744 has 80 divisors (see below), whose sum is σ = 290060740480. Its totient is φ = 57199322880.

The previous prime is 131440741699. The next prime is 131440741753. The reversal of 131440741744 is 447147044131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131440741697 and 131440741706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755059 + ... + 912685.

It is an arithmetic number, because the mean of its divisors is an integer number (3625759256).

Almost surely, 2^131440741744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131440741744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145030370240).

131440741744 is an abundant number, since it is smaller than the sum of its proper divisors (158619998736).

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

131440741744 is a wasteful number, since it uses less digits than its factorization.

131440741744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157878 (or 157872 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

Adding to 131440741744 its reverse (447147044131), we get a palindrome (578587785875).

The spelling of 131440741744 in words is "one hundred thirty-one billion, four hundred forty million, seven hundred forty-one thousand, seven hundred forty-four".