1131276 has 12 divisors (see below), whose sum is σ = 2639672. Its totient is φ = 377088.

The previous prime is 1131271. The next prime is 1131307. The reversal of 1131276 is 6721311.

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

It is not an unprimeable number, because it can be changed into a prime (1131271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47125 + ... + 47148.

2^1131276 is an apocalyptic number.

It is an amenable number.

1131276 is an abundant number, since it is smaller than the sum of its proper divisors (1508396).

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

1131276 is a wasteful number, since it uses less digits than its factorization.

1131276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94280 (or 94278 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 1131276 is about 1063.6145918518. The cubic root of 1131276 is about 104.1972341936.

Adding to 1131276 its reverse (6721311), we get a palindrome (7852587).

The spelling of 1131276 in words is "one million, one hundred thirty-one thousand, two hundred seventy-six".