1117558643 has 2 divisors, whose sum is σ = 1117558644. Its totient is φ = 1117558642.

The previous prime is 1117558627. The next prime is 1117558667. The reversal of 1117558643 is 3468557111.

It is a weak prime.

It is an emirp because it is prime and its reverse (3468557111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1117558643 - 2⁴ = 1117558627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1117558643.

It is not a weakly prime, because it can be changed into another prime (1117558543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558779321 + 558779322.

It is an arithmetic number, because the mean of its divisors is an integer number (558779322).

Almost surely, 2^1117558643 is an apocalyptic number.

1117558643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117558643 is an equidigital number, since it uses as much as digits as its factorization.

1117558643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 1117558643 is about 33429.9064162615. The cubic root of 1117558643 is about 1037.7437040705.

The spelling of 1117558643 in words is "one billion, one hundred seventeen million, five hundred fifty-eight thousand, six hundred forty-three".