144436323140 has 12 divisors (see below), whose sum is σ = 303316278636. Its totient is φ = 57774529248.

The previous prime is 144436323077. The next prime is 144436323149. The reversal of 144436323140 is 41323634441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115257534016 + 29178789124 = 339496^2 + 170818^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144436323140.

It is not an unprimeable number, because it can be changed into a prime (144436323149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3610908059 + ... + 3610908098.

It is an arithmetic number, because the mean of its divisors is an integer number (25276356553).

Almost surely, 2^144436323140 is an apocalyptic number.

144436323140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144436323140 is an abundant number, since it is smaller than the sum of its proper divisors (158879955496).

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

144436323140 is a wasteful number, since it uses less digits than its factorization.

144436323140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221816166 (or 7221816164 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 144436323140 its reverse (41323634441), we get a palindrome (185759957581).

The spelling of 144436323140 in words is "one hundred forty-four billion, four hundred thirty-six million, three hundred twenty-three thousand, one hundred forty".