1131047 has 2 divisors, whose sum is σ = 1131048. Its totient is φ = 1131046.

The previous prime is 1131023. The next prime is 1131049. The reversal of 1131047 is 7401311.

It is a strong prime.

It is an emirp because it is prime and its reverse (7401311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131047 - 2¹⁰ = 1130023 is a prime.

Together with 1131049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565523 + 565524.

It is an arithmetic number, because the mean of its divisors is an integer number (565524).

2^1131047 is an apocalyptic number.

1131047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131047 is an equidigital number, since it uses as much as digits as its factorization.

1131047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1131047 is about 1063.5069346271. The cubic root of 1131047 is about 104.1902029661.

Adding to 1131047 its reverse (7401311), we get a palindrome (8532358).

The spelling of 1131047 in words is "one million, one hundred thirty-one thousand, forty-seven".