13805003 has 8 divisors (see below), whose sum is σ = 14650272. Its totient is φ = 12963456.

The previous prime is 13804993. The next prime is 13805009. The reversal of 13805003 is 30050831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13805003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13805009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11801 + ... + 12917.

It is an arithmetic number, because the mean of its divisors is an integer number (1831284).

Almost surely, 2^13805003 is an apocalyptic number.

13805003 is a deficient number, since it is larger than the sum of its proper divisors (845269).

13805003 is a wasteful number, since it uses less digits than its factorization.

13805003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13805003 is about 3715.5084443451. The cubic root of 13805003 is about 239.8900132606.

Adding to 13805003 its reverse (30050831), we get a palindrome (43855834).

The spelling of 13805003 in words is "thirteen million, eight hundred five thousand, three".