144225239 has 2 divisors, whose sum is σ = 144225240. Its totient is φ = 144225238.

The previous prime is 144225227. The next prime is 144225269. The reversal of 144225239 is 932522441.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144225239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144225209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72112619 + 72112620.

It is an arithmetic number, because the mean of its divisors is an integer number (72112620).

Almost surely, 2^144225239 is an apocalyptic number.

144225239 is a deficient number, since it is larger than the sum of its proper divisors (1).

144225239 is an equidigital number, since it uses as much as digits as its factorization.

144225239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 144225239 is about 12009.3812913072. The cubic root of 144225239 is about 524.4214203543.

The spelling of 144225239 in words is "one hundred forty-four million, two hundred twenty-five thousand, two hundred thirty-nine".