111413543 has 4 divisors (see below), whose sum is σ = 111794088. Its totient is φ = 111033000.

The previous prime is 111413539. The next prime is 111413567. The reversal of 111413543 is 345314111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111413543 - 2² = 111413539 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 (111413243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189833 + ... + 190418.

It is an arithmetic number, because the mean of its divisors is an integer number (27948522).

Almost surely, 2^111413543 is an apocalyptic number.

111413543 is a deficient number, since it is larger than the sum of its proper divisors (380545).

111413543 is an equidigital number, since it uses as much as digits as its factorization.

111413543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380544.

The product of its digits is 720, while the sum is 23.

The square root of 111413543 is about 10555.2613894683. The cubic root of 111413543 is about 481.1856438820.

Adding to 111413543 its reverse (345314111), we get a palindrome (456727654).

The spelling of 111413543 in words is "one hundred eleven million, four hundred thirteen thousand, five hundred forty-three".