1147271 has 2 divisors, whose sum is σ = 1147272. Its totient is φ = 1147270.

The previous prime is 1147253. The next prime is 1147273. The reversal of 1147271 is 1727411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1147271 - 2¹⁸ = 885127 is a prime.

Together with 1147273, 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 (1147273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573635 + 573636.

It is an arithmetic number, because the mean of its divisors is an integer number (573636).

2^1147271 is an apocalyptic number.

1147271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147271 is an equidigital number, since it uses as much as digits as its factorization.

1147271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 392, while the sum is 23.

The square root of 1147271 is about 1071.1073709017. The cubic root of 1147271 is about 104.6860159142.

The spelling of 1147271 in words is "one million, one hundred forty-seven thousand, two hundred seventy-one".