144129921440 has 48 divisors (see below), whose sum is σ = 346931619048. Its totient is φ = 56564192256.

The previous prime is 144129921421. The next prime is 144129921443. The reversal of 144129921440 is 44129921441.

It can be written as a sum of positive squares in 4 ways, for example, as 93858900496 + 50271020944 = 306364^2 + 224212^2 .

It is not an unprimeable number, because it can be changed into a prime (144129921443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8489747 + ... + 8506706.

Almost surely, 2^144129921440 is an apocalyptic number.

144129921440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144129921440 is an abundant number, since it is smaller than the sum of its proper divisors (202801697608).

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

144129921440 is a wasteful number, since it uses less digits than its factorization.

144129921440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16996521 (or 16996513 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

Subtracting from 144129921440 its reverse (44129921441), we obtain a palindrome (99999999999).

The spelling of 144129921440 in words is "one hundred forty-four billion, one hundred twenty-nine million, nine hundred twenty-one thousand, four hundred forty".