1131055 has 8 divisors (see below), whose sum is σ = 1386432. Its totient is φ = 885408.

The previous prime is 1131049. The next prime is 1131077. The reversal of 1131055 is 5501311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131055 - 2³ = 1131047 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2172 + ... + 2641.

It is an arithmetic number, because the mean of its divisors is an integer number (173304).

2^1131055 is an apocalyptic number.

1131055 is a deficient number, since it is larger than the sum of its proper divisors (255377).

1131055 is an equidigital number, since it uses as much as digits as its factorization.

1131055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4865.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 1131055 is about 1063.5106957619. The cubic root of 1131055 is about 104.1904486145.

Adding to 1131055 its reverse (5501311), we get a palindrome (6632366).

The spelling of 1131055 in words is "one million, one hundred thirty-one thousand, fifty-five".