1338293903 has 2 divisors, whose sum is σ = 1338293904. Its totient is φ = 1338293902.

The previous prime is 1338293867. The next prime is 1338293911. The reversal of 1338293903 is 3093928331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1338293903 - 2¹² = 1338289807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338293993) 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, 669146951 + 669146952.

It is an arithmetic number, because the mean of its divisors is an integer number (669146952).

Almost surely, 2^1338293903 is an apocalyptic number.

1338293903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338293903 is an equidigital number, since it uses as much as digits as its factorization.

1338293903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 1338293903 is about 36582.6995040005. The cubic root of 1338293903 is about 1102.0056803978.

The spelling of 1338293903 in words is "one billion, three hundred thirty-eight million, two hundred ninety-three thousand, nine hundred three".