144442505445 has 16 divisors (see below), whose sum is σ = 264123438720. Its totient is φ = 66030859584.

The previous prime is 144442505387. The next prime is 144442505453. The reversal of 144442505445 is 544505244441.

It is a happy number.

It is not a de Polignac number, because 144442505445 - 2⁶ = 144442505381 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144442505397 and 144442505406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687821350 + ... + 687821559.

It is an arithmetic number, because the mean of its divisors is an integer number (16507714920).

Almost surely, 2^144442505445 is an apocalyptic number.

144442505445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144442505445 is a deficient number, since it is larger than the sum of its proper divisors (119680933275).

144442505445 is a wasteful number, since it uses less digits than its factorization.

144442505445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375642924.

The product of its (nonzero) digits is 1024000, while the sum is 42.

Adding to 144442505445 its reverse (544505244441), we get a palindrome (688947749886).

The spelling of 144442505445 in words is "one hundred forty-four billion, four hundred forty-two million, five hundred five thousand, four hundred forty-five".