144404325 has 36 divisors (see below), whose sum is σ = 278545540. Its totient is φ = 71089920.

The previous prime is 144404321. The next prime is 144404333. The reversal of 144404325 is 523404441.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 35034561 + 109369764 = 5919^2 + 10458^2 .

It is not a de Polignac number, because 144404325 - 2² = 144404321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144404321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21760 + ... + 27609.

Almost surely, 2^144404325 is an apocalyptic number.

144404325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144404325 is a deficient number, since it is larger than the sum of its proper divisors (134141215).

144404325 is a wasteful number, since it uses less digits than its factorization.

144404325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49398 (or 49390 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 144404325 is about 12016.8350658566. The cubic root of 144404325 is about 524.6383904435.

Adding to 144404325 its reverse (523404441), we get a palindrome (667808766).

The spelling of 144404325 in words is "one hundred forty-four million, four hundred four thousand, three hundred twenty-five".