1142786 has 8 divisors (see below), whose sum is σ = 1746684. Its totient is φ = 560560.

The previous prime is 1142783. The next prime is 1142789. The reversal of 1142786 is 6872411.

It is an interprime number because it is at equal distance from previous prime (1142783) and next prime (1142789).

It can be written as a sum of positive squares in 2 ways, for example, as 1142761 + 25 = 1069^2 + 5^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1142783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5285 + ... + 5496.

2^1142786 is an apocalyptic number.

1142786 is a deficient number, since it is larger than the sum of its proper divisors (603898).

1142786 is a wasteful number, since it uses less digits than its factorization.

1142786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10836.

The product of its digits is 2688, while the sum is 29.

The square root of 1142786 is about 1069.0116931072. The cubic root of 1142786 is about 104.5494222244.

The spelling of 1142786 in words is "one million, one hundred forty-two thousand, seven hundred eighty-six".