1131147 has 6 divisors (see below), whose sum is σ = 1633892. Its totient is φ = 754092.

The previous prime is 1131139. The next prime is 1131157. The reversal of 1131147 is 7411311.

It is not a de Polignac number, because 1131147 - 2³ = 1131139 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62833 + ... + 62850.

2^1131147 is an apocalyptic number.

1131147 is a deficient number, since it is larger than the sum of its proper divisors (502745).

1131147 is a wasteful number, since it uses less digits than its factorization.

1131147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125689 (or 125686 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 1131147 is about 1063.5539478560. The cubic root of 1131147 is about 104.1932734878.

Adding to 1131147 its reverse (7411311), we get a palindrome (8542458).

The spelling of 1131147 in words is "one million, one hundred thirty-one thousand, one hundred forty-seven".