1142218 has 16 divisors (see below), whose sum is σ = 2136384. Its totient is φ = 444960.

The previous prime is 1142201. The next prime is 1142233. The reversal of 1142218 is 8122411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1142195 and 1142204.

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 7 ways as a sum of consecutive naturals, for example, 3555 + ... + 3862.

It is an arithmetic number, because the mean of its divisors is an integer number (133524).

2^1142218 is an apocalyptic number.

1142218 is a deficient number, since it is larger than the sum of its proper divisors (994166).

1142218 is a wasteful number, since it uses less digits than its factorization.

1142218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437.

The product of its digits is 128, while the sum is 19.

The square root of 1142218 is about 1068.7459941445. The cubic root of 1142218 is about 104.5320979213.

Adding to 1142218 its reverse (8122411), we get a palindrome (9264629).

It can be divided in two parts, 114 and 2218, that added together give a palindrome (2332).

The spelling of 1142218 in words is "one million, one hundred forty-two thousand, two hundred eighteen".