144452215505 has 8 divisors (see below), whose sum is σ = 186676709352. Its totient is φ = 106672405248.

The previous prime is 144452215487. The next prime is 144452215517. The reversal of 144452215505 is 505512254441.

It can be written as a sum of positive squares in 4 ways, for example, as 16214456896 + 128237758609 = 127336^2 + 358103^2 .

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 144452215505 - 2⁶ = 144452215441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111170824 + ... + 1111170953.

It is an arithmetic number, because the mean of its divisors is an integer number (23334588669).

Almost surely, 2^144452215505 is an apocalyptic number.

It is an amenable number.

144452215505 is a deficient number, since it is larger than the sum of its proper divisors (42224493847).

144452215505 is a wasteful number, since it uses less digits than its factorization.

144452215505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222341795.

The product of its (nonzero) digits is 160000, while the sum is 38.

Adding to 144452215505 its reverse (505512254441), we get a palindrome (649964469946).

The spelling of 144452215505 in words is "one hundred forty-four billion, four hundred fifty-two million, two hundred fifteen thousand, five hundred five".