1123442459 has 2 divisors, whose sum is σ = 1123442460. Its totient is φ = 1123442458.

The previous prime is 1123442413. The next prime is 1123442483. The reversal of 1123442459 is 9542443211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123442459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123442959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561721229 + 561721230.

It is an arithmetic number, because the mean of its divisors is an integer number (561721230).

Almost surely, 2^1123442459 is an apocalyptic number.

1123442459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123442459 is an equidigital number, since it uses as much as digits as its factorization.

1123442459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 1123442459 is about 33517.7931701954. The cubic root of 1123442459 is about 1039.5617171344.

The spelling of 1123442459 in words is "one billion, one hundred twenty-three million, four hundred forty-two thousand, four hundred fifty-nine".