809103 has 4 divisors (see below), whose sum is σ = 1078808. Its totient is φ = 539400.

The previous prime is 809101. The next prime is 809141. The reversal of 809103 is 301908.

809103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 809103 - 2¹ = 809101 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 809103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134848 + ... + 134853.

It is an arithmetic number, because the mean of its divisors is an integer number (269702).

2⁸⁰⁹¹⁰³ is an apocalyptic number.

809103 is a deficient number, since it is larger than the sum of its proper divisors (269705).

809103 is a wasteful number, since it uses less digits than its factorization.

809103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269704.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 809103 is about 899.5015286257. The cubic root of 809103 is about 93.1825527460.

The spelling of 809103 in words is "eight hundred nine thousand, one hundred three".