1144004287 has 2 divisors, whose sum is σ = 1144004288. Its totient is φ = 1144004286.

The previous prime is 1144004227. The next prime is 1144004321. The reversal of 1144004287 is 7824004411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144004287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144004227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572002143 + 572002144.

It is an arithmetic number, because the mean of its divisors is an integer number (572002144).

Almost surely, 2^1144004287 is an apocalyptic number.

1144004287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144004287 is an equidigital number, since it uses as much as digits as its factorization.

1144004287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 1144004287 is about 33823.1324244222. The cubic root of 1144004287 is about 1045.8656127657.

Adding to 1144004287 its reverse (7824004411), we get a palindrome (8968008698).

The spelling of 1144004287 in words is "one billion, one hundred forty-four million, four thousand, two hundred eighty-seven".