144703454321 has 4 divisors (see below), whose sum is σ = 145625132532. Its totient is φ = 143781776112.

The previous prime is 144703454303. The next prime is 144703454341. The reversal of 144703454321 is 123454307441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77136730225 + 67566724096 = 277735^2 + 259936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144703454321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144703454341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460838870 + ... + 460839183.

It is an arithmetic number, because the mean of its divisors is an integer number (36406283133).

Almost surely, 2^144703454321 is an apocalyptic number.

It is an amenable number.

144703454321 is a deficient number, since it is larger than the sum of its proper divisors (921678211).

144703454321 is an equidigital number, since it uses as much as digits as its factorization.

144703454321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921678210.

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 144703454321 in words is "one hundred forty-four billion, seven hundred three million, four hundred fifty-four thousand, three hundred twenty-one".