1338138875 has 8 divisors (see below), whose sum is σ = 1669997472. Its totient is φ = 1070511000.

The previous prime is 1338138871. The next prime is 1338138877. The reversal of 1338138875 is 5788318331.

It is not a de Polignac number, because 1338138875 - 2² = 1338138871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338138871) 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 in 7 ways as a sum of consecutive naturals, for example, 5352431 + ... + 5352680.

It is an arithmetic number, because the mean of its divisors is an integer number (208749684).

Almost surely, 2^1338138875 is an apocalyptic number.

1338138875 is a deficient number, since it is larger than the sum of its proper divisors (331858597).

1338138875 is an equidigital number, since it uses as much as digits as its factorization.

1338138875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705126 (or 10705116 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 1338138875 is about 36580.5805722107. The cubic root of 1338138875 is about 1101.9631266325.

The spelling of 1338138875 in words is "one billion, three hundred thirty-eight million, one hundred thirty-eight thousand, eight hundred seventy-five".