1147123 has 4 divisors (see below), whose sum is σ = 1154160. Its totient is φ = 1140088.

The previous prime is 1147117. The next prime is 1147127. The reversal of 1147123 is 3217411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3217411 = 103 ⋅31237.

It is a cyclic number.

It is not a de Polignac number, because 1147123 - 2¹⁷ = 1016051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1147123.

It is not an unprimeable number, because it can be changed into a prime (1147127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3268 + ... + 3601.

It is an arithmetic number, because the mean of its divisors is an integer number (288540).

2^1147123 is an apocalyptic number.

1147123 is a deficient number, since it is larger than the sum of its proper divisors (7037).

1147123 is an equidigital number, since it uses as much as digits as its factorization.

1147123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036.

The product of its digits is 168, while the sum is 19.

The square root of 1147123 is about 1071.0382812953. The cubic root of 1147123 is about 104.6815141599.

The spelling of 1147123 in words is "one million, one hundred forty-seven thousand, one hundred twenty-three".