144445643 has 8 divisors (see below), whose sum is σ = 148460400. Its totient is φ = 140460768.

The previous prime is 144445633. The next prime is 144445667. The reversal of 144445643 is 346544441.

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 144445643 - 2⁶ = 144445579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144445633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513 + ... + 17181.

It is an arithmetic number, because the mean of its divisors is an integer number (18557550).

Almost surely, 2^144445643 is an apocalyptic number.

144445643 is a deficient number, since it is larger than the sum of its proper divisors (4014757).

144445643 is a wasteful number, since it uses less digits than its factorization.

144445643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14941.

The product of its digits is 92160, while the sum is 35.

The square root of 144445643 is about 12018.5541143683. The cubic root of 144445643 is about 524.6884234368.

The spelling of 144445643 in words is "one hundred forty-four million, four hundred forty-five thousand, six hundred forty-three".