1142275 has 6 divisors (see below), whose sum is σ = 1416452. Its totient is φ = 913800.

The previous prime is 1142269. The next prime is 1142279. The reversal of 1142275 is 5722411.

It is a happy number.

It is not a de Polignac number, because 1142275 - 2⁵ = 1142243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22821 + ... + 22870.

2^1142275 is an apocalyptic number.

1142275 is a deficient number, since it is larger than the sum of its proper divisors (274177).

1142275 is an equidigital number, since it uses as much as digits as its factorization.

1142275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45701 (or 45696 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 1142275 is about 1068.7726605785. The cubic root of 1142275 is about 104.5338367109.

Adding to 1142275 its reverse (5722411), we get a palindrome (6864686).

The spelling of 1142275 in words is "one million, one hundred forty-two thousand, two hundred seventy-five".