13138875 has 64 divisors (see below), whose sum is σ = 25833600. Its totient is φ = 6566400.

The previous prime is 13138837. The next prime is 13138877. The reversal of 13138875 is 57883131.

It is not a de Polignac number, because 13138875 - 2¹⁰ = 13137851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13138877) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57261 + ... + 57489.

It is an arithmetic number, because the mean of its divisors is an integer number (403650).

Almost surely, 2^13138875 is an apocalyptic number.

13138875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13138875 is a deficient number, since it is larger than the sum of its proper divisors (12694725).

13138875 is a wasteful number, since it uses less digits than its factorization.

13138875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 254 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 13138875 is about 3624.7586126527. The cubic root of 13138875 is about 235.9677910176.

The spelling of 13138875 in words is "thirteen million, one hundred thirty-eight thousand, eight hundred seventy-five".