144243445541 has 4 divisors (see below), whose sum is σ = 155339095212. Its totient is φ = 133147795872.

The previous prime is 144243445531. The next prime is 144243445543. The reversal of 144243445541 is 145544342441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145544342441 = 29 ⋅5018770429.

It can be written as a sum of positive squares in 2 ways, for example, as 94697137441 + 49546308100 = 307729^2 + 222590^2 .

It is not a de Polignac number, because 144243445541 - 2³⁰ = 143169703717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144243445543) by changing a digit.

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, 5547824816 + ... + 5547824841.

It is an arithmetic number, because the mean of its divisors is an integer number (38834773803).

Almost surely, 2^144243445541 is an apocalyptic number.

It is an amenable number.

144243445541 is a deficient number, since it is larger than the sum of its proper divisors (11095649671).

144243445541 is a wasteful number, since it uses less digits than its factorization.

144243445541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11095649670.

The product of its digits is 614400, while the sum is 41.

Adding to 144243445541 its reverse (145544342441), we get a palindrome (289787787982).

The spelling of 144243445541 in words is "one hundred forty-four billion, two hundred forty-three million, four hundred forty-five thousand, five hundred forty-one".