1121347 has 2 divisors, whose sum is σ = 1121348. Its totient is φ = 1121346.

The previous prime is 1121333. The next prime is 1121357. The reversal of 1121347 is 7431211.

It is a strong prime.

It is an emirp because it is prime and its reverse (7431211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121347 - 2¹¹ = 1119299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1121317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560673 + 560674.

It is an arithmetic number, because the mean of its divisors is an integer number (560674).

2^1121347 is an apocalyptic number.

1121347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121347 is an equidigital number, since it uses as much as digits as its factorization.

1121347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168, while the sum is 19.

The square root of 1121347 is about 1058.9367308768. The cubic root of 1121347 is about 103.8914980338.

Adding to 1121347 its reverse (7431211), we get a palindrome (8552558).

The spelling of 1121347 in words is "one million, one hundred twenty-one thousand, three hundred forty-seven".