2119208939 has 2 divisors, whose sum is σ = 2119208940. Its totient is φ = 2119208938.

The previous prime is 2119208921. The next prime is 2119208941. The reversal of 2119208939 is 9398029112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2119208939 - 2⁸ = 2119208683 is a prime.

It is a Sophie Germain prime.

Together with 2119208941, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2119208939.

It is not a weakly prime, because it can be changed into another prime (2119208969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059604469 + 1059604470.

It is an arithmetic number, because the mean of its divisors is an integer number (1059604470).

Almost surely, 2^2119208939 is an apocalyptic number.

2119208939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2119208939 is an equidigital number, since it uses as much as digits as its factorization.

2119208939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 2119208939 is about 46034.8665578602. The cubic root of 2119208939 is about 1284.4718545005.

The spelling of 2119208939 in words is "two billion, one hundred nineteen million, two hundred eight thousand, nine hundred thirty-nine".