131401734440 has 64 divisors (see below), whose sum is σ = 311371819200. Its totient is φ = 49769192448.

The previous prime is 131401734433. The next prime is 131401734467. The reversal of 131401734440 is 44437104131.

It is a super-2 number, since 2×131401734440² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131401734397 and 131401734406.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1497872 + ... + 1583168.

It is an arithmetic number, because the mean of its divisors is an integer number (4865184675).

Almost surely, 2^131401734440 is an apocalyptic number.

131401734440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131401734440 is an abundant number, since it is smaller than the sum of its proper divisors (179970084760).

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

131401734440 is a wasteful number, since it uses less digits than its factorization.

131401734440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87354 (or 87350 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 131401734440 its reverse (44437104131), we get a palindrome (175838838571).

The spelling of 131401734440 in words is "one hundred thirty-one billion, four hundred one million, seven hundred thirty-four thousand, four hundred forty".