1112143 has 2 divisors, whose sum is σ = 1112144. Its totient is φ = 1112142.

The previous prime is 1112141. The next prime is 1112147. The reversal of 1112143 is 3412111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1112143 - 2¹ = 1112141 is a prime.

Together with 1112141, it forms a pair of twin primes.

1112143 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112141) 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 as a sum of consecutive naturals, namely, 556071 + 556072.

It is an arithmetic number, because the mean of its divisors is an integer number (556072).

2^1112143 is an apocalyptic number.

1112143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112143 is an equidigital number, since it uses as much as digits as its factorization.

1112143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24, while the sum is 13.

The square root of 1112143 is about 1054.5819076772. The cubic root of 1112143 is about 103.6064701315.

Adding to 1112143 its reverse (3412111), we get a palindrome (4524254).

Subtracting 1112143 from its reverse (3412111), we obtain a cube (2299968 = 132³).

The spelling of 1112143 in words is "one million, one hundred twelve thousand, one hundred forty-three".