144556021107445 has 8 divisors (see below), whose sum is σ = 174631434895800. Its totient is φ = 114868677174720.

The previous prime is 144556021107391. The next prime is 144556021107473. The reversal of 144556021107445 is 544701120655441.

It can be written as a sum of positive squares in 4 ways, for example, as 25492875608209 + 119063145499236 = 5049047^2 + 10911606^2 .

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

It is not a de Polignac number, because 144556021107445 - 2¹⁵ = 144556021074677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97017463086 + ... + 97017464575.

It is an arithmetic number, because the mean of its divisors is an integer number (21828929361975).

Almost surely, 2^{144556021107445} is an apocalyptic number.

It is an amenable number.

144556021107445 is a deficient number, since it is larger than the sum of its proper divisors (30075413788355).

144556021107445 is a wasteful number, since it uses less digits than its factorization.

144556021107445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194034927815.

The product of its (nonzero) digits is 2688000, while the sum is 49.

The spelling of 144556021107445 in words is "one hundred forty-four trillion, five hundred fifty-six billion, twenty-one million, one hundred seven thousand, four hundred forty-five".