11112543 has 48 divisors (see below), whose sum is σ = 18922176. Its totient is φ = 6220800.

The previous prime is 11112527. The next prime is 11112551. The reversal of 11112543 is 34521111.

11112543 is a `hidden beast` number, since 11 + 112 + 543 = 666.

11112543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11112543 - 2⁴ = 11112527 is a prime.

It is a super-2 number, since 2×11112543² = 246977223853698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73518 + ... + 73668.

It is an arithmetic number, because the mean of its divisors is an integer number (394212).

Almost surely, 2^11112543 is an apocalyptic number.

11112543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11112543 is a deficient number, since it is larger than the sum of its proper divisors (7809633).

11112543 is a wasteful number, since it uses less digits than its factorization.

11112543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 221 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11112543 is about 3333.5481097473. The cubic root of 11112543 is about 223.1539018184.

Adding to 11112543 its reverse (34521111), we get a palindrome (45633654).

The spelling of 11112543 in words is "eleven million, one hundred twelve thousand, five hundred forty-three".