144320312444138 has 8 divisors (see below), whose sum is σ = 216738490681440. Its totient is φ = 72074148883660.

The previous prime is 144320312444137. The next prime is 144320312444197. The reversal of 144320312444138 is 831444213023441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×144320312444138² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144320312444137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43003667108 + ... + 43003670463.

It is an arithmetic number, because the mean of its divisors is an integer number (27092311335180).

Almost surely, 2^{144320312444138} is an apocalyptic number.

144320312444138 is a deficient number, since it is larger than the sum of its proper divisors (72418178237302).

144320312444138 is an equidigital number, since it uses as much as digits as its factorization.

144320312444138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86007338412.

The product of its (nonzero) digits is 884736, while the sum is 44.

Adding to 144320312444138 its reverse (831444213023441), we get a palindrome (975764525467579).

The spelling of 144320312444138 in words is "one hundred forty-four trillion, three hundred twenty billion, three hundred twelve million, four hundred forty-four thousand, one hundred thirty-eight".