1229329 has 2 divisors, whose sum is σ = 1229330. Its totient is φ = 1229328.

The previous prime is 1229317. The next prime is 1229351. The reversal of 1229329 is 9239221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 898704 + 330625 = 948^2 + 575^2 .

It is an emirp because it is prime and its reverse (9239221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1229329 - 2⁵ = 1229297 is a prime.

It is a super-2 number, since 2×1229329² = 3022499580482, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1229297 and 1229306.

It is not a weakly prime, because it can be changed into another prime (1229309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614664 + 614665.

It is an arithmetic number, because the mean of its divisors is an integer number (614665).

2^1229329 is an apocalyptic number.

It is an amenable number.

1229329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229329 is an equidigital number, since it uses as much as digits as its factorization.

1229329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 1229329 is about 1108.7510992103. The cubic root of 1229329 is about 107.1246400351.

The spelling of 1229329 in words is "one million, two hundred twenty-nine thousand, three hundred twenty-nine".