100805853 has 4 divisors (see below), whose sum is σ = 134407808. Its totient is φ = 67203900.

The previous prime is 100805851. The next prime is 100805863. The reversal of 100805853 is 358508001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 358508001 = 3 ⋅119502667.

It is not a de Polignac number, because 100805853 - 2¹ = 100805851 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 100805853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100805851) 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, 16800973 + ... + 16800978.

It is an arithmetic number, because the mean of its divisors is an integer number (33601952).

Almost surely, 2^100805853 is an apocalyptic number.

It is an amenable number.

100805853 is a deficient number, since it is larger than the sum of its proper divisors (33601955).

100805853 is an equidigital number, since it uses as much as digits as its factorization.

100805853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33601954.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 100805853 is about 10040.2118005548. The cubic root of 100805853 is about 465.4023618780.

The spelling of 100805853 in words is "one hundred million, eight hundred five thousand, eight hundred fifty-three".