144232213 has 2 divisors, whose sum is σ = 144232214. Its totient is φ = 144232212.

The previous prime is 144232201. The next prime is 144232247. The reversal of 144232213 is 312232441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96373489 + 47858724 = 9817^2 + 6918^2 .

It is a cyclic number.

It is not a de Polignac number, because 144232213 - 2⁹ = 144231701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144232273) 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 as a sum of consecutive naturals, namely, 72116106 + 72116107.

It is an arithmetic number, because the mean of its divisors is an integer number (72116107).

Almost surely, 2^144232213 is an apocalyptic number.

It is an amenable number.

144232213 is a deficient number, since it is larger than the sum of its proper divisors (1).

144232213 is an equidigital number, since it uses as much as digits as its factorization.

144232213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 144232213 is about 12009.6716441375. The cubic root of 144232213 is about 524.4298730035.

Adding to 144232213 its reverse (312232441), we get a palindrome (456464654).

The spelling of 144232213 in words is "one hundred forty-four million, two hundred thirty-two thousand, two hundred thirteen".