1129243 has 4 divisors (see below), whose sum is σ = 1135288. Its totient is φ = 1123200.

The previous prime is 1129229. The next prime is 1129253. The reversal of 1129243 is 3429211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3429211 = 113 ⋅30347.

It is a cyclic number.

It is not a de Polignac number, because 1129243 - 2⁵ = 1129211 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2733 + ... + 3118.

It is an arithmetic number, because the mean of its divisors is an integer number (283822).

2^1129243 is an apocalyptic number.

1129243 is a deficient number, since it is larger than the sum of its proper divisors (6045).

1129243 is an equidigital number, since it uses as much as digits as its factorization.

1129243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6044.

The product of its digits is 432, while the sum is 22.

The square root of 1129243 is about 1062.6584587721. The cubic root of 1129243 is about 104.1347796443.

Subtracting 1129243 from its reverse (3429211), we obtain a cube (2299968 = 132³).

The spelling of 1129243 in words is "one million, one hundred twenty-nine thousand, two hundred forty-three".