144444789 has 16 divisors (see below), whose sum is σ = 216637440. Its totient is φ = 96295068.

The previous prime is 144444787. The next prime is 144444809. The reversal of 144444789 is 987444441.

It is not a de Polignac number, because 144444789 - 2¹ = 144444787 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144444787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30837 + ... + 35210.

It is an arithmetic number, because the mean of its divisors is an integer number (13539840).

Almost surely, 2^144444789 is an apocalyptic number.

It is an amenable number.

144444789 is a deficient number, since it is larger than the sum of its proper divisors (72192651).

144444789 is an frugal number, since it uses more digits than its factorization.

144444789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66068 (or 66050 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 144444789 is about 12018.5185859157. The cubic root of 144444789 is about 524.6873894036.

The spelling of 144444789 in words is "one hundred forty-four million, four hundred forty-four thousand, seven hundred eighty-nine".