144215544 has 96 divisors (see below), whose sum is σ = 404202960. Its totient is φ = 42831360.

The previous prime is 144215537. The next prime is 144215569. The reversal of 144215544 is 445512441.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 153444 + ... + 154380.

Almost surely, 2^144215544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144215544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202101480).

144215544 is an abundant number, since it is smaller than the sum of its proper divisors (259987416).

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

144215544 is a wasteful number, since it uses less digits than its factorization.

144215544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1006 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 144215544 is about 12008.9776417479. The cubic root of 144215544 is about 524.4096693376.

Adding to 144215544 its reverse (445512441), we get a palindrome (589727985).

The spelling of 144215544 in words is "one hundred forty-four million, two hundred fifteen thousand, five hundred forty-four".