1097143 has 2 divisors, whose sum is σ = 1097144. Its totient is φ = 1097142.

The previous prime is 1097141. The next prime is 1097147. The reversal of 1097143 is 3417901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097143 - 2¹ = 1097141 is a prime.

Together with 1097141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548571 + 548572.

It is an arithmetic number, because the mean of its divisors is an integer number (548572).

2^1097143 is an apocalyptic number.

1097143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097143 is an equidigital number, since it uses as much as digits as its factorization.

1097143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1097143 is about 1047.4459413259. The cubic root of 1097143 is about 103.1385636276.

The spelling of 1097143 in words is "one million, ninety-seven thousand, one hundred forty-three".