144544332545 has 4 divisors (see below), whose sum is σ = 173453199060. Its totient is φ = 115635466032.

The previous prime is 144544332539. The next prime is 144544332643. The reversal of 144544332545 is 545233445441.

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 68526674176 + 76017658369 = 261776^2 + 275713^2 .

It is a cyclic number.

It is not a de Polignac number, because 144544332545 - 2¹² = 144544328449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144544332496 and 144544332505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14454433250 + ... + 14454433259.

It is an arithmetic number, because the mean of its divisors is an integer number (43363299765).

Almost surely, 2^144544332545 is an apocalyptic number.

It is an amenable number.

144544332545 is a deficient number, since it is larger than the sum of its proper divisors (28908866515).

144544332545 is an equidigital number, since it uses as much as digits as its factorization.

144544332545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28908866514.

The product of its digits is 2304000, while the sum is 44.

Adding to 144544332545 its reverse (545233445441), we get a palindrome (689777777986).

The spelling of 144544332545 in words is "one hundred forty-four billion, five hundred forty-four million, three hundred thirty-two thousand, five hundred forty-five".