1227143 has 2 divisors, whose sum is σ = 1227144. Its totient is φ = 1227142.

The previous prime is 1227133. The next prime is 1227151. The reversal of 1227143 is 3417221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1227143 - 2²⁰ = 178567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1227103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613571 + 613572.

It is an arithmetic number, because the mean of its divisors is an integer number (613572).

2^1227143 is an apocalyptic number.

1227143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227143 is an equidigital number, since it uses as much as digits as its factorization.

1227143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 20.

The square root of 1227143 is about 1107.7648667475. The cubic root of 1227143 is about 107.0611058079.

The spelling of 1227143 in words is "one million, two hundred twenty-seven thousand, one hundred forty-three".