1142286 has 16 divisors (see below), whose sum is σ = 2322768. Its totient is φ = 374400.

The previous prime is 1142279. The next prime is 1142287. The reversal of 1142286 is 6822411.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195 + ... + 1926.

It is an arithmetic number, because the mean of its divisors is an integer number (145173).

2^1142286 is an apocalyptic number.

1142286 is an abundant number, since it is smaller than the sum of its proper divisors (1180482).

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

1142286 is a wasteful number, since it uses less digits than its factorization.

1142286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187.

The product of its digits is 768, while the sum is 24.

The square root of 1142286 is about 1068.7778066558. Note that the first 3 decimals coincide. The cubic root of 1142286 is about 104.5341722602.

Adding to 1142286 its reverse (6822411), we get a palindrome (7964697).

The spelling of 1142286 in words is "one million, one hundred forty-two thousand, two hundred eighty-six".