100005803 has 4 divisors (see below), whose sum is σ = 100102008. Its totient is φ = 99909600.

The previous prime is 100005757. The next prime is 100005809. The reversal of 100005803 is 308500001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308500001 = 173 ⋅1783237.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100005803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100005809) 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, 46526 + ... + 48627.

It is an arithmetic number, because the mean of its divisors is an integer number (25025502).

Almost surely, 2^100005803 is an apocalyptic number.

100005803 is a deficient number, since it is larger than the sum of its proper divisors (96205).

100005803 is an equidigital number, since it uses as much as digits as its factorization.

100005803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96204.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 100005803 is about 10000.2901457908. The cubic root of 100005803 is about 464.1678615676.

Adding to 100005803 its reverse (308500001), we get a palindrome (408505804).

The spelling of 100005803 in words is "one hundred million, five thousand, eight hundred three".