13138475 has 24 divisors (see below), whose sum is σ = 18763680. Its totient is φ = 8939520.

The previous prime is 13138471. The next prime is 13138487. The reversal of 13138475 is 57483131.

13138475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13138475 - 2² = 13138471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13138471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33581 + ... + 33969.

It is an arithmetic number, because the mean of its divisors is an integer number (781820).

Almost surely, 2^13138475 is an apocalyptic number.

13138475 is a deficient number, since it is larger than the sum of its proper divisors (5625205).

13138475 is a wasteful number, since it uses less digits than its factorization.

13138475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 594 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 13138475 is about 3624.7034361448. The cubic root of 13138475 is about 235.9653963916.

The spelling of 13138475 in words is "thirteen million, one hundred thirty-eight thousand, four hundred seventy-five".