1138281143 has 2 divisors, whose sum is σ = 1138281144. Its totient is φ = 1138281142.

The previous prime is 1138281107. The next prime is 1138281149. The reversal of 1138281143 is 3411828311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1138281143 - 2⁸ = 1138280887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1138281149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569140571 + 569140572.

It is an arithmetic number, because the mean of its divisors is an integer number (569140572).

Almost surely, 2^1138281143 is an apocalyptic number.

1138281143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138281143 is an equidigital number, since it uses as much as digits as its factorization.

1138281143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

The square root of 1138281143 is about 33738.4223549353. The cubic root of 1138281143 is about 1044.1186353809.

The spelling of 1138281143 in words is "one billion, one hundred thirty-eight million, two hundred eighty-one thousand, one hundred forty-three".