1113543 has 6 divisors (see below), whose sum is σ = 1608464. Its totient is φ = 742356.

The previous prime is 1113527. The next prime is 1113557. The reversal of 1113543 is 3453111.

It is not a de Polignac number, because 1113543 - 2⁴ = 1113527 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 (1113043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61855 + ... + 61872.

2^1113543 is an apocalyptic number.

1113543 is a deficient number, since it is larger than the sum of its proper divisors (494921).

1113543 is a wasteful number, since it uses less digits than its factorization.

1113543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123733 (or 123730 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 1113543 is about 1055.2454690734. The cubic root of 1113543 is about 103.6499262448.

Adding to 1113543 its reverse (3453111), we get a palindrome (4566654).

The spelling of 1113543 in words is "one million, one hundred thirteen thousand, five hundred forty-three".