1229297 has 2 divisors, whose sum is σ = 1229298. Its totient is φ = 1229296.

The previous prime is 1229279. The next prime is 1229309. The reversal of 1229297 is 7929221.

Together with previous prime (1229279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 712336 + 516961 = 844^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229297 - 2¹⁰ = 1228273 is a prime.

It is a super-2 number, since 2×1229297² = 3022342228418, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1229227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614648 + 614649.

It is an arithmetic number, because the mean of its divisors is an integer number (614649).

2^1229297 is an apocalyptic number.

It is an amenable number.

1229297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229297 is an equidigital number, since it uses as much as digits as its factorization.

1229297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 1229297 is about 1108.7366684655. The cubic root of 1229297 is about 107.1237105258.

The spelling of 1229297 in words is "one million, two hundred twenty-nine thousand, two hundred ninety-seven".