144440155140 has 48 divisors (see below), whose sum is σ = 404453673792. Its totient is φ = 38515351936.

The previous prime is 144440155103. The next prime is 144440155141. The reversal of 144440155140 is 41551044441.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (144440155141) 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, 1349887 + ... + 1452953.

It is an arithmetic number, because the mean of its divisors is an integer number (8426118204).

Almost surely, 2^144440155140 is an apocalyptic number.

144440155140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144440155140 is an abundant number, since it is smaller than the sum of its proper divisors (260013518652).

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

144440155140 is a wasteful number, since it uses less digits than its factorization.

144440155140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126436 (or 126434 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

Adding to 144440155140 its reverse (41551044441), we get a palindrome (185991199581).

The spelling of 144440155140 in words is "one hundred forty-four billion, four hundred forty million, one hundred fifty-five thousand, one hundred forty".