144521332 has 12 divisors (see below), whose sum is σ = 253134756. Its totient is φ = 72197120.

The previous prime is 144521327. The next prime is 144521339. The reversal of 144521332 is 233125441.

It can be written as a sum of positive squares in 2 ways, for example, as 117418896 + 27102436 = 10836^2 + 5206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144521297 and 144521306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144521339) 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, 10573 + ... + 20020.

It is an arithmetic number, because the mean of its divisors is an integer number (21094563).

Almost surely, 2^144521332 is an apocalyptic number.

It is an amenable number.

144521332 is a deficient number, since it is larger than the sum of its proper divisors (108613424).

144521332 is a wasteful number, since it uses less digits than its factorization.

144521332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31778 (or 31776 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 144521332 is about 12021.7025416536. The cubic root of 144521332 is about 524.7800523863.

Adding to 144521332 its reverse (233125441), we get a palindrome (377646773).

The spelling of 144521332 in words is "one hundred forty-four million, five hundred twenty-one thousand, three hundred thirty-two".