144013544 has 8 divisors (see below), whose sum is σ = 270025410. Its totient is φ = 72006768.

The previous prime is 144013537. The next prime is 144013553. The reversal of 144013544 is 445310441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 92891044 + 51122500 = 9638^2 + 7150^2 .

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

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9000839 + ... + 9000854.

Almost surely, 2^144013544 is an apocalyptic number.

It is an amenable number.

144013544 is a deficient number, since it is larger than the sum of its proper divisors (126011866).

144013544 is a wasteful number, since it uses less digits than its factorization.

144013544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18001699 (or 18001695 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 144013544 is about 12000.5643200643. The cubic root of 144013544 is about 524.1647113458.

Adding to 144013544 its reverse (445310441), we get a palindrome (589323985).

The spelling of 144013544 in words is "one hundred forty-four million, thirteen thousand, five hundred forty-four".