1138281107 has 2 divisors, whose sum is σ = 1138281108. Its totient is φ = 1138281106.

The previous prime is 1138281091. The next prime is 1138281143. The reversal of 1138281107 is 7011828311.

It is a weak prime.

It is an emirp because it is prime and its reverse (7011828311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1138281107 - 2⁴ = 1138281091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1138280107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569140553 + 569140554.

It is an arithmetic number, because the mean of its divisors is an integer number (569140554).

Almost surely, 2^1138281107 is an apocalyptic number.

1138281107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138281107 is an equidigital number, since it uses as much as digits as its factorization.

1138281107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 1138281107 is about 33738.4218214190. The cubic root of 1138281107 is about 1044.1186243736.

The spelling of 1138281107 in words is "one billion, one hundred thirty-eight million, two hundred eighty-one thousand, one hundred seven".