6851121 has 4 divisors (see below), whose sum is σ = 9134832. Its totient is φ = 4567412.

The previous prime is 6851113. The next prime is 6851129. The reversal of 6851121 is 1211586.

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.

It is an interprime number because it is at equal distance from previous prime (6851113) and next prime (6851129).

It is a cyclic number.

It is not a de Polignac number, because 6851121 - 2³ = 6851113 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 6851091 and 6851100.

It is not an unprimeable number, because it can be changed into a prime (6851129) 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, 1141851 + ... + 1141856.

It is an arithmetic number, because the mean of its divisors is an integer number (2283708).

Almost surely, 2^6851121 is an apocalyptic number.

It is an amenable number.

6851121 is a deficient number, since it is larger than the sum of its proper divisors (2283711).

6851121 is a wasteful number, since it uses less digits than its factorization.

6851121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283710.

The product of its digits is 480, while the sum is 24.

The square root of 6851121 is about 2617.4646129413. The cubic root of 6851121 is about 189.9272205095.

The spelling of 6851121 in words is "six million, eight hundred fifty-one thousand, one hundred twenty-one".