1131347 has 8 divisors (see below), whose sum is σ = 1349376.
Its totient is φ = 927432.
The previous prime is 1131343. The next prime is 1131353. The reversal of 1131347 is 7431311.
It is a happy number.
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 1131347 - 22 = 1131343 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1131341) 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, 3353 + ... + 3674.
It is an arithmetic number, because the mean of its divisors is an integer number (168672).
21131347 is an apocalyptic number.
1131347 is a deficient number, since it is larger than the sum of its proper divisors (218029).
1131347 is an equidigital number, since it uses as much as digits as its factorization.
1131347 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7057.
The product of its digits is 252, while the sum is 20.
The square root of 1131347 is about 1063.6479680797.
The cubic root of 1131347 is about 104.1994139884.
Adding to 1131347 its reverse (7431311), we get a palindrome (8562658).
The spelling of 1131347 in words is "one million, one hundred thirty-one thousand, three hundred forty-seven".