1229317 has 2 divisors, whose sum is σ = 1229318. Its totient is φ = 1229316.

The previous prime is 1229311. The next prime is 1229329. The reversal of 1229317 is 7139221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 690561 + 538756 = 831^2 + 734^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229317 - 2³ = 1229309 is a prime.

It is a super-2 number, since 2×1229317² = 3022440572978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1229291 and 1229300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229311) 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, 614658 + 614659.

It is an arithmetic number, because the mean of its divisors is an integer number (614659).

2^1229317 is an apocalyptic number.

It is an amenable number.

1229317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229317 is an equidigital number, since it uses as much as digits as its factorization.

1229317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 1229317 is about 1108.7456877030. The cubic root of 1229317 is about 107.1242914710.

It can be divided in two parts, 12293 and 17, that multiplied together give a triangular number (208981 = T₆₄₆).

The spelling of 1229317 in words is "one million, two hundred twenty-nine thousand, three hundred seventeen".