144442242113401 has 4 divisors (see below), whose sum is σ = 147965223628404. Its totient is φ = 140919260598400.

The previous prime is 144442242113399. The next prime is 144442242113447. The reversal of 144442242113401 is 104311242244441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19826100927801 + 124616141185600 = 4452651^2 + 11163160^2 .

It is a cyclic number.

It is not a de Polignac number, because 144442242113401 - 2¹ = 144442242113399 is a prime.

It is a super-2 number, since 2×144442242113401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144442242113461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761490757440 + ... + 1761490757521.

It is an arithmetic number, because the mean of its divisors is an integer number (36991305907101).

Almost surely, 2^{144442242113401} is an apocalyptic number.

It is an amenable number.

144442242113401 is a deficient number, since it is larger than the sum of its proper divisors (3522981515003).

144442242113401 is an equidigital number, since it uses as much as digits as its factorization.

144442242113401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522981515002.

The product of its (nonzero) digits is 98304, while the sum is 37.

Adding to 144442242113401 its reverse (104311242244441), we get a palindrome (248753484357842).

The spelling of 144442242113401 in words is "one hundred forty-four trillion, four hundred forty-two billion, two hundred forty-two million, one hundred thirteen thousand, four hundred one".