144918229 has 2 divisors, whose sum is σ = 144918230. Its totient is φ = 144918228.

The previous prime is 144918223. The next prime is 144918269. The reversal of 144918229 is 922819441.

It is an a-pointer prime, because the next prime (144918269) can be obtained adding 144918229 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79744900 + 65173329 = 8930^2 + 8073^2 .

It is a cyclic number.

It is not a de Polignac number, because 144918229 - 2⁵ = 144918197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144918191 and 144918200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144918223) 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, 72459114 + 72459115.

It is an arithmetic number, because the mean of its divisors is an integer number (72459115).

Almost surely, 2^144918229 is an apocalyptic number.

It is an amenable number.

144918229 is a deficient number, since it is larger than the sum of its proper divisors (1).

144918229 is an equidigital number, since it uses as much as digits as its factorization.

144918229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 144918229 is about 12038.1987439982. The cubic root of 144918229 is about 525.2600120968.

The spelling of 144918229 in words is "one hundred forty-four million, nine hundred eighteen thousand, two hundred twenty-nine".