144003245521 has 8 divisors (see below), whose sum is σ = 148677064704. Its totient is φ = 139384738080.

The previous prime is 144003245513. The next prime is 144003245531. The reversal of 144003245521 is 125542300441.

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

It is a cyclic number.

It is not a de Polignac number, because 144003245521 - 2³ = 144003245513 is a prime.

It is a super-2 number, since 2×144003245521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144003245531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13822645 + ... + 13833058.

It is an arithmetic number, because the mean of its divisors is an integer number (18584633088).

Almost surely, 2^144003245521 is an apocalyptic number.

It is an amenable number.

144003245521 is a deficient number, since it is larger than the sum of its proper divisors (4673819183).

144003245521 is a wasteful number, since it uses less digits than its factorization.

144003245521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27655871.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 144003245521 its reverse (125542300441), we get a palindrome (269545545962).

The spelling of 144003245521 in words is "one hundred forty-four billion, three million, two hundred forty-five thousand, five hundred twenty-one".