1123726799 has 6 divisors (see below), whose sum is σ = 1216816776. Its totient is φ = 1037286120.

The previous prime is 1123726717. The next prime is 1123726817. The reversal of 1123726799 is 9976273211.

It is not a de Polignac number, because 1123726799 - 2¹⁶ = 1123661263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123726399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3324467 + ... + 3324804.

It is an arithmetic number, because the mean of its divisors is an integer number (202802796).

Almost surely, 2^1123726799 is an apocalyptic number.

1123726799 is a deficient number, since it is larger than the sum of its proper divisors (93089977).

1123726799 is an equidigital number, since it uses as much as digits as its factorization.

1123726799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649297 (or 6649284 counting only the distinct ones).

The product of its digits is 285768, while the sum is 47.

The square root of 1123726799 is about 33522.0345295449. The cubic root of 1123726799 is about 1039.6494130794.

The spelling of 1123726799 in words is "one billion, one hundred twenty-three million, seven hundred twenty-six thousand, seven hundred ninety-nine".