6812101 has 4 divisors (see below), whose sum is σ = 6817612. Its totient is φ = 6806592.

The previous prime is 6812077. The next prime is 6812161. The reversal of 6812101 is 1012186.

It is a Cunningham number, because it is equal to 2610²+1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 6630625 = 426^2 + 2575^2 .

It is a cyclic number.

It is not a de Polignac number, because 6812101 - 2¹¹ = 6810053 is a prime.

It is a Duffinian number.

6812101 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6812161) 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, 55 + ... + 3691.

It is an arithmetic number, because the mean of its divisors is an integer number (1704403).

Almost surely, 2^6812101 is an apocalyptic number.

It is an amenable number.

6812101 is a deficient number, since it is larger than the sum of its proper divisors (5511).

6812101 is a wasteful number, since it uses less digits than its factorization.

6812101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 6812101 is about 2610.0001915709. Note that the first 3 decimals coincide. The cubic root of 6812101 is about 189.5659621433.

Adding to 6812101 its reverse (1012186), we get a palindrome (7824287).

The spelling of 6812101 in words is "six million, eight hundred twelve thousand, one hundred one".