13500203 has 8 divisors (see below), whose sum is σ = 14452800. Its totient is φ = 12571848.

The previous prime is 13500173. The next prime is 13500209. The reversal of 13500203 is 30200531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13500203 - 2¹⁰ = 13499179 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 4901 + ... + 7142.

It is an arithmetic number, because the mean of its divisors is an integer number (1806600).

Almost surely, 2^13500203 is an apocalyptic number.

13500203 is a deficient number, since it is larger than the sum of its proper divisors (952597).

13500203 is a wasteful number, since it uses less digits than its factorization.

13500203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 13500203 is about 3674.2622388719. The cubic root of 13500203 is about 238.1113512797. Note that the first 3 decimals are identical.

Adding to 13500203 its reverse (30200531), we get a palindrome (43700734).

The spelling of 13500203 in words is "thirteen million, five hundred thousand, two hundred three".