144405532 has 12 divisors (see below), whose sum is σ = 252794920. Its totient is φ = 72178416.

The previous prime is 144405517. The next prime is 144405539. The reversal of 144405532 is 235504441.

It is a self number, because there is not a number n which added to its sum of digits gives 144405532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144405539) 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 3 ways as a sum of consecutive naturals, for example, 16894 + ... + 23962.

Almost surely, 2^144405532 is an apocalyptic number.

It is an amenable number.

144405532 is a deficient number, since it is larger than the sum of its proper divisors (108389388).

144405532 is a wasteful number, since it uses less digits than its factorization.

144405532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12180 (or 12178 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 144405532 is about 12016.8852869618. The cubic root of 144405532 is about 524.6398521651.

Adding to 144405532 its reverse (235504441), we get a palindrome (379909973).

The spelling of 144405532 in words is "one hundred forty-four million, four hundred five thousand, five hundred thirty-two".