1131168 has 24 divisors (see below), whose sum is σ = 2969568. Its totient is φ = 377024.

The previous prime is 1131157. The next prime is 1131181. The reversal of 1131168 is 8611311.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5796 + ... + 5987.

It is an arithmetic number, because the mean of its divisors is an integer number (123732).

2^1131168 is an apocalyptic number.

It is an amenable number.

1131168 is an abundant number, since it is smaller than the sum of its proper divisors (1838400).

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

1131168 is a wasteful number, since it uses less digits than its factorization.

1131168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11796 (or 11788 counting only the distinct ones).

The product of its digits is 144, while the sum is 21.

The square root of 1131168 is about 1063.5638203700. The cubic root of 1131168 is about 104.1939182744.

Adding to 1131168 its reverse (8611311), we get a palindrome (9742479).

The spelling of 1131168 in words is "one million, one hundred thirty-one thousand, one hundred sixty-eight".