100685903 has 8 divisors (see below), whose sum is σ = 101923920. Its totient is φ = 99452160.

The previous prime is 100685839. The next prime is 100685947. The reversal of 100685903 is 309586001.

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

It is not a de Polignac number, because 100685903 - 2⁶ = 100685839 is a prime.

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 100685903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100685983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93653 + ... + 94721.

It is an arithmetic number, because the mean of its divisors is an integer number (12740490).

Almost surely, 2^100685903 is an apocalyptic number.

100685903 is a deficient number, since it is larger than the sum of its proper divisors (1238017).

100685903 is an equidigital number, since it uses as much as digits as its factorization.

100685903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 100685903 is about 10034.2365429563. The cubic root of 100685903 is about 465.2176928052.

The spelling of 100685903 in words is "one hundred million, six hundred eighty-five thousand, nine hundred three".