1143266 has 4 divisors (see below), whose sum is σ = 1714902. Its totient is φ = 571632.

The previous prime is 1143257. The next prime is 1143269. The reversal of 1143266 is 6623411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 674041 + 469225 = 821^2 + 685^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1143269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285815 + ... + 285818.

2^1143266 is an apocalyptic number.

1143266 is a deficient number, since it is larger than the sum of its proper divisors (571636).

1143266 is an equidigital number, since it uses as much as digits as its factorization.

1143266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571635.

The product of its digits is 864, while the sum is 23.

The square root of 1143266 is about 1069.2361759686. The cubic root of 1143266 is about 104.5640580058.

Adding to 1143266 its reverse (6623411), we get a palindrome (7766677).

The spelling of 1143266 in words is "one million, one hundred forty-three thousand, two hundred sixty-six".