144440305453 has 8 divisors (see below), whose sum is σ = 149155344800. Its totient is φ = 139786900848.

The previous prime is 144440305411. The next prime is 144440305511. The reversal of 144440305453 is 354503044441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144440305453 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 (144440335453) 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, 15403923 + ... + 15413296.

It is an arithmetic number, because the mean of its divisors is an integer number (18644418100).

Almost surely, 2^144440305453 is an apocalyptic number.

It is an amenable number.

144440305453 is a deficient number, since it is larger than the sum of its proper divisors (4715039347).

144440305453 is a wasteful number, since it uses less digits than its factorization.

144440305453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30817371.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 144440305453 its reverse (354503044441), we get a palindrome (498943349894).

The spelling of 144440305453 in words is "one hundred forty-four billion, four hundred forty million, three hundred five thousand, four hundred fifty-three".