1143276 has 12 divisors (see below), whose sum is σ = 2667672. Its totient is φ = 381088.

The previous prime is 1143269. The next prime is 1143281. The reversal of 1143276 is 6723411.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 47625 + ... + 47648.

It is an arithmetic number, because the mean of its divisors is an integer number (222306).

2^1143276 is an apocalyptic number.

It is an amenable number.

1143276 is an abundant number, since it is smaller than the sum of its proper divisors (1524396).

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

1143276 is a wasteful number, since it uses less digits than its factorization.

1143276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95280 (or 95278 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 1143276 is about 1069.2408521937. The cubic root of 1143276 is about 104.5643628743.

Adding to 1143276 its reverse (6723411), we get a palindrome (7866687).

The spelling of 1143276 in words is "one million, one hundred forty-three thousand, two hundred seventy-six".