1123384459 has 4 divisors (see below), whose sum is σ = 1147286304. Its totient is φ = 1099482616.

The previous prime is 1123384441. The next prime is 1123384487. The reversal of 1123384459 is 9544833211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123384459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123384439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11950852 + ... + 11950945.

It is an arithmetic number, because the mean of its divisors is an integer number (286821576).

Almost surely, 2^1123384459 is an apocalyptic number.

1123384459 is a deficient number, since it is larger than the sum of its proper divisors (23901845).

1123384459 is an equidigital number, since it uses as much as digits as its factorization.

1123384459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23901844.

The product of its digits is 103680, while the sum is 40.

The square root of 1123384459 is about 33516.9279469345. The cubic root of 1123384459 is about 1039.5438269977.

The spelling of 1123384459 in words is "one billion, one hundred twenty-three million, three hundred eighty-four thousand, four hundred fifty-nine".