1123791 has 8 divisors (see below), whose sum is σ = 1521024. Its totient is φ = 737880.

The previous prime is 1123777. The next prime is 1123807. The reversal of 1123791 is 1973211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123791 - 2⁹ = 1123279 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123741) 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 7 ways as a sum of consecutive naturals, for example, 2595 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (190128).

2^1123791 is an apocalyptic number.

1123791 is a deficient number, since it is larger than the sum of its proper divisors (397233).

1123791 is an equidigital number, since it uses as much as digits as its factorization.

1123791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661.

The product of its digits is 378, while the sum is 24.

The square root of 1123791 is about 1060.0900905112. The cubic root of 1123791 is about 103.9669211860.

The spelling of 1123791 in words is "one million, one hundred twenty-three thousand, seven hundred ninety-one".