144144544 has 24 divisors (see below), whose sum is σ = 292940928. Its totient is φ = 69746880.

The previous prime is 144144541. The next prime is 144144551. The reversal of 144144544 is 445441441.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (144144541) 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, 71662 + ... + 73645.

It is an arithmetic number, because the mean of its divisors is an integer number (12205872).

Almost surely, 2^144144544 is an apocalyptic number.

It is an amenable number.

144144544 is an abundant number, since it is smaller than the sum of its proper divisors (148796384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144144544 is a wasteful number, since it uses less digits than its factorization.

144144544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145348 (or 145340 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

The square root of 144144544 is about 12006.0211560700. The cubic root of 144144544 is about 524.3235963264.

Adding to 144144544 its reverse (445441441), we get a palindrome (589585985).

The spelling of 144144544 in words is "one hundred forty-four million, one hundred forty-four thousand, five hundred forty-four".