1131356 has 12 divisors (see below), whose sum is σ = 1998192. Its totient is φ = 560448.

The previous prime is 1131353. The next prime is 1131379. The reversal of 1131356 is 6531311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131353) 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, 800 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (166516).

2^1131356 is an apocalyptic number.

It is an amenable number.

1131356 is a deficient number, since it is larger than the sum of its proper divisors (866836).

1131356 is a wasteful number, since it uses less digits than its factorization.

1131356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620 (or 2618 counting only the distinct ones).

The product of its digits is 270, while the sum is 20.

The square root of 1131356 is about 1063.6521987943. The cubic root of 1131356 is about 104.1996902940.

Adding to 1131356 its reverse (6531311), we get a palindrome (7662667).

The spelling of 1131356 in words is "one million, one hundred thirty-one thousand, three hundred fifty-six".