2003194939 has 2 divisors, whose sum is σ = 2003194940. Its totient is φ = 2003194938.

The previous prime is 2003194937. The next prime is 2003194967. The reversal of 2003194939 is 9394913002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003194939 - 2¹ = 2003194937 is a prime.

It is a super-4 number, since 4×2003194939⁴ (a number of 38 digits) contains 4444 as substring.

Together with 2003194937, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2003194931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001597469 + 1001597470.

It is an arithmetic number, because the mean of its divisors is an integer number (1001597470).

Almost surely, 2^2003194939 is an apocalyptic number.

2003194939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003194939 is an equidigital number, since it uses as much as digits as its factorization.

2003194939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 2003194939 is about 44757.0657997148. The cubic root of 2003194939 is about 1260.5915881166.

The spelling of 2003194939 in words is "two billion, three million, one hundred ninety-four thousand, nine hundred thirty-nine".