111055543 has 8 divisors (see below), whose sum is σ = 117683280. Its totient is φ = 104438400.

The previous prime is 111055519. The next prime is 111055559. The reversal of 111055543 is 345550111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111055543 is a prime.

It is a super-4 number, since 4×111055543⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111055583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31993 + ... + 35293.

It is an arithmetic number, because the mean of its divisors is an integer number (14710410).

Almost surely, 2^111055543 is an apocalyptic number.

111055543 is a deficient number, since it is larger than the sum of its proper divisors (6627737).

111055543 is a wasteful number, since it uses less digits than its factorization.

111055543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5297.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 111055543 is about 10538.2893773136. The cubic root of 111055543 is about 480.6697003209.

The spelling of 111055543 in words is "one hundred eleven million, fifty-five thousand, five hundred forty-three".