144224407 has 2 divisors, whose sum is σ = 144224408. Its totient is φ = 144224406.

The previous prime is 144224393. The next prime is 144224419. The reversal of 144224407 is 704422441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144224407 - 2¹¹ = 144222359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144224477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72112203 + 72112204.

It is an arithmetic number, because the mean of its divisors is an integer number (72112204).

Almost surely, 2^144224407 is an apocalyptic number.

144224407 is a deficient number, since it is larger than the sum of its proper divisors (1).

144224407 is an equidigital number, since it uses as much as digits as its factorization.

144224407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 144224407 is about 12009.3466516709. The cubic root of 144224407 is about 524.4204119329.

Adding to 144224407 its reverse (704422441), we get a palindrome (848646848).

The spelling of 144224407 in words is "one hundred forty-four million, two hundred twenty-four thousand, four hundred seven".