144431303425 has 12 divisors (see below), whose sum is σ = 189629805996. Its totient is φ = 108748275200.

The previous prime is 144431303399. The next prime is 144431303503. The reversal of 144431303425 is 524303134441.

It can be written as a sum of positive squares in 6 ways, for example, as 16804455424 + 127626848001 = 129632^2 + 357249^2 .

It is a de Polignac number, because none of the positive numbers 2^k-144431303425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169918756 + ... + 169919605.

It is an arithmetic number, because the mean of its divisors is an integer number (15802483833).

Almost surely, 2^144431303425 is an apocalyptic number.

It is an amenable number.

144431303425 is a deficient number, since it is larger than the sum of its proper divisors (45198502571).

144431303425 is a wasteful number, since it uses less digits than its factorization.

144431303425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339838388 (or 339838383 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 144431303425 its reverse (524303134441), we get a palindrome (668734437866).

The spelling of 144431303425 in words is "one hundred forty-four billion, four hundred thirty-one million, three hundred three thousand, four hundred twenty-five".