1320144229 has 2 divisors, whose sum is σ = 1320144230. Its totient is φ = 1320144228.

The previous prime is 1320144223. The next prime is 1320144311. The reversal of 1320144229 is 9224410231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 956479329 + 363664900 = 30927^2 + 19070^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320144229 - 2⁹ = 1320143717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320144197 and 1320144206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320144223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660072114 + 660072115.

It is an arithmetic number, because the mean of its divisors is an integer number (660072115).

Almost surely, 2^1320144229 is an apocalyptic number.

It is an amenable number.

1320144229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320144229 is an equidigital number, since it uses as much as digits as its factorization.

1320144229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1320144229 is about 36333.7890812395. The cubic root of 1320144229 is about 1097.0012619691.

The spelling of 1320144229 in words is "one billion, three hundred twenty million, one hundred forty-four thousand, two hundred twenty-nine".