1144139 has 2 divisors, whose sum is σ = 1144140. Its totient is φ = 1144138.

The previous prime is 1144103. The next prime is 1144141. The reversal of 1144139 is 9314411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144139 is a prime.

Together with 1144141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1144439) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572069 + 572070.

It is an arithmetic number, because the mean of its divisors is an integer number (572070).

2^1144139 is an apocalyptic number.

1144139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144139 is an equidigital number, since it uses as much as digits as its factorization.

1144139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

The square root of 1144139 is about 1069.6443334118. The cubic root of 1144139 is about 104.5906663359.

The spelling of 1144139 in words is "one million, one hundred forty-four thousand, one hundred thirty-nine".