1123594543 has 2 divisors, whose sum is σ = 1123594544. Its totient is φ = 1123594542.

The previous prime is 1123594523. The next prime is 1123594603. The reversal of 1123594543 is 3454953211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123594543 is a prime.

It is a super-3 number, since 3×1123594543³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123594513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561797271 + 561797272.

It is an arithmetic number, because the mean of its divisors is an integer number (561797272).

Almost surely, 2^1123594543 is an apocalyptic number.

1123594543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123594543 is an equidigital number, since it uses as much as digits as its factorization.

1123594543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 1123594543 is about 33520.0617988690. The cubic root of 1123594543 is about 1039.6086246163.

The spelling of 1123594543 in words is "one billion, one hundred twenty-three million, five hundred ninety-four thousand, five hundred forty-three".