13506975 has 36 divisors (see below), whose sum is σ = 24402456. Its totient is φ = 7141440.

The previous prime is 13506973. The next prime is 13507009. The reversal of 13506975 is 57960531.

It is a happy number.

It is not a de Polignac number, because 13506975 - 2¹ = 13506973 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13506973) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38752 + ... + 39098.

It is an arithmetic number, because the mean of its divisors is an integer number (677846).

Almost surely, 2^13506975 is an apocalyptic number.

13506975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13506975 is a deficient number, since it is larger than the sum of its proper divisors (10895481).

13506975 is a wasteful number, since it uses less digits than its factorization.

13506975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 13506975 is about 3675.1836688797. The cubic root of 13506975 is about 238.1511585953.

The spelling of 13506975 in words is "thirteen million, five hundred six thousand, nine hundred seventy-five".