1139894179 has 2 divisors, whose sum is σ = 1139894180. Its totient is φ = 1139894178.

The previous prime is 1139894153. The next prime is 1139894207. The reversal of 1139894179 is 9714989311.

It is a weak prime.

It is an emirp because it is prime and its reverse (9714989311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139894179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1139892179) 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, 569947089 + 569947090.

It is an arithmetic number, because the mean of its divisors is an integer number (569947090).

Almost surely, 2^1139894179 is an apocalyptic number.

1139894179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139894179 is an equidigital number, since it uses as much as digits as its factorization.

1139894179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 52.

The square root of 1139894179 is about 33762.3189221357. The cubic root of 1139894179 is about 1044.6116026452.

The spelling of 1139894179 in words is "one billion, one hundred thirty-nine million, eight hundred ninety-four thousand, one hundred seventy-nine".