1142118 has 24 divisors (see below), whose sum is σ = 2501928. Its totient is φ = 376512.

The previous prime is 1142083. The next prime is 1142129. The reversal of 1142118 is 8112411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1142118.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1630 + ... + 2222.

It is an arithmetic number, because the mean of its divisors is an integer number (104247).

2^1142118 is an apocalyptic number.

1142118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1142118 is an abundant number, since it is smaller than the sum of its proper divisors (1359810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142118 is a wasteful number, since it uses less digits than its factorization.

1142118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 705 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 1142118 is about 1068.6992093194. The cubic root of 1142118 is about 104.5290472734.

Adding to 1142118 its reverse (8112411), we get a palindrome (9254529).

The spelling of 1142118 in words is "one million, one hundred forty-two thousand, one hundred eighteen".