1117143 has 24 divisors (see below), whose sum is σ = 1747200. Its totient is φ = 685584.

The previous prime is 1117117. The next prime is 1117153. The reversal of 1117143 is 3417111.

It is not a de Polignac number, because 1117143 - 2⁵ = 1117111 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117153) 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 23 ways as a sum of consecutive naturals, for example, 7968 + ... + 8106.

It is an arithmetic number, because the mean of its divisors is an integer number (72800).

2^1117143 is an apocalyptic number.

1117143 is a deficient number, since it is larger than the sum of its proper divisors (630057).

1117143 is a wasteful number, since it uses less digits than its factorization.

1117143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 208 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 1117143 is about 1056.9498568996. The cubic root of 1117143 is about 103.7615035389.

Subtracting 1117143 from its reverse (3417111), we obtain a cube (2299968 = 132³).

The spelling of 1117143 in words is "one million, one hundred seventeen thousand, one hundred forty-three".