13500206 has 4 divisors (see below), whose sum is σ = 20250312. Its totient is φ = 6750102.

The previous prime is 13500173. The next prime is 13500209. The reversal of 13500206 is 60200531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60200531 = 19 ⋅3168449.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500209) 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 as a sum of consecutive naturals, namely, 3375050 + ... + 3375053.

It is an arithmetic number, because the mean of its divisors is an integer number (5062578).

Almost surely, 2^13500206 is an apocalyptic number.

13500206 is a deficient number, since it is larger than the sum of its proper divisors (6750106).

13500206 is an equidigital number, since it uses as much as digits as its factorization.

13500206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6750105.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13500206 is about 3674.2626471171. The cubic root of 13500206 is about 238.1113689173. Note that the first 3 decimals are identical.

Adding to 13500206 its reverse (60200531), we get a palindrome (73700737).

The spelling of 13500206 in words is "thirteen million, five hundred thousand, two hundred six".