144007144 has 8 divisors (see below), whose sum is σ = 270013410. Its totient is φ = 72003568.

The previous prime is 144007079. The next prime is 144007147. The reversal of 144007144 is 441700441.

It can be written as a sum of positive squares in only one way, i.e., 129276900 + 14730244 = 11370^2 + 3838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (144007147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000439 + ... + 9000454.

Almost surely, 2^144007144 is an apocalyptic number.

It is an amenable number.

144007144 is a deficient number, since it is larger than the sum of its proper divisors (126006266).

144007144 is a wasteful number, since it uses less digits than its factorization.

144007144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18000899 (or 18000895 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 144007144 is about 12000.2976629749. The cubic root of 144007144 is about 524.1569465579.

Adding to 144007144 its reverse (441700441), we get a palindrome (585707585).

The spelling of 144007144 in words is "one hundred forty-four million, seven thousand, one hundred forty-four".