144222329 has 2 divisors, whose sum is σ = 144222330. Its totient is φ = 144222328.

The previous prime is 144222319. The next prime is 144222347. The reversal of 144222329 is 923222441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97614400 + 46607929 = 9880^2 + 6827^2 .

It is a cyclic number.

It is not a de Polignac number, because 144222329 - 2⁴ = 144222313 is a prime.

It is equal to p_8137307 and since 144222329 and 8137307 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (144222319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72111164 + 72111165.

It is an arithmetic number, because the mean of its divisors is an integer number (72111165).

Almost surely, 2^144222329 is an apocalyptic number.

It is an amenable number.

144222329 is a deficient number, since it is larger than the sum of its proper divisors (1).

144222329 is an equidigital number, since it uses as much as digits as its factorization.

144222329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 144222329 is about 12009.2601354122. The cubic root of 144222329 is about 524.4178932865.

The spelling of 144222329 in words is "one hundred forty-four million, two hundred twenty-two thousand, three hundred twenty-nine".