1123608049 has 2 divisors, whose sum is σ = 1123608050. Its totient is φ = 1123608048.

The previous prime is 1123607909. The next prime is 1123608053. The reversal of 1123608049 is 9408063211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 825527824 + 298080225 = 28732^2 + 17265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123608049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123608089) 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 as a sum of consecutive naturals, namely, 561804024 + 561804025.

It is an arithmetic number, because the mean of its divisors is an integer number (561804025).

Almost surely, 2^1123608049 is an apocalyptic number.

It is an amenable number.

1123608049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123608049 is an equidigital number, since it uses as much as digits as its factorization.

1123608049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1123608049 is about 33520.2632597061. The cubic root of 1123608049 is about 1039.6127900862.

It can be divided in two parts, 112360 and 8049, that added together give a square (120409 = 347²).

The spelling of 1123608049 in words is "one billion, one hundred twenty-three million, six hundred eight thousand, forty-nine".