1131115 has 8 divisors (see below), whose sum is σ = 1389168. Its totient is φ = 883680.

The previous prime is 1131113. The next prime is 1131121. The reversal of 1131115 is 5111311.

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

It is not a de Polignac number, because 1131115 - 2¹ = 1131113 is a prime.

It is a super-2 number, since 2×1131115² = 2558842286450, which contains 22 as substring.

It is a Duffinian number.

1131115 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1131095 and 1131104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2416 + ... + 2845.

It is an arithmetic number, because the mean of its divisors is an integer number (173646).

2^1131115 is an apocalyptic number.

1131115 is a deficient number, since it is larger than the sum of its proper divisors (258053).

1131115 is an equidigital number, since it uses as much as digits as its factorization.

1131115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309.

The product of its digits is 15, while the sum is 13.

The square root of 1131115 is about 1063.5389038488. The cubic root of 1131115 is about 104.1922909405.

Adding to 1131115 its reverse (5111311), we get a palindrome (6242426).

The spelling of 1131115 in words is "one million, one hundred thirty-one thousand, one hundred fifteen".