1259143 has 2 divisors, whose sum is σ = 1259144. Its totient is φ = 1259142.

The previous prime is 1259129. The next prime is 1259171. The reversal of 1259143 is 3419521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1259143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1259113) 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, 629571 + 629572.

It is an arithmetic number, because the mean of its divisors is an integer number (629572).

2^1259143 is an apocalyptic number.

1259143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1259143 is an equidigital number, since it uses as much as digits as its factorization.

1259143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 1259143 is about 1122.1154129589. The cubic root of 1259143 is about 107.9837366915.

The spelling of 1259143 in words is "one million, two hundred fifty-nine thousand, one hundred forty-three".