131444285860 has 24 divisors (see below), whose sum is σ = 276047694720. Its totient is φ = 52574915424.

The previous prime is 131444285837. The next prime is 131444285867. The reversal of 131444285860 is 68582444131.

It is a self number, because there is not a number n which added to its sum of digits gives 131444285860.

It is not an unprimeable number, because it can be changed into a prime (131444285867) 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, 233407 + ... + 563353.

It is an arithmetic number, because the mean of its divisors is an integer number (11501987280).

Almost surely, 2^131444285860 is an apocalyptic number.

131444285860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131444285860 is an abundant number, since it is smaller than the sum of its proper divisors (144603408860).

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

131444285860 is a wasteful number, since it uses less digits than its factorization.

131444285860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349875 (or 349873 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 131444285860 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred eighty-five thousand, eight hundred sixty".