806121 has 12 divisors (see below), whose sum is σ = 1192048. Its totient is φ = 524664.

The previous prime is 806111. The next prime is 806129. The reversal of 806121 is 121608.

806121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 806121 - 2¹⁰ = 805097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806094 and 806103.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 806121.

It is not an unprimeable number, because it can be changed into a prime (806129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 655 + ... + 1428.

2⁸⁰⁶¹²¹ is an apocalyptic number.

It is an amenable number.

806121 is a deficient number, since it is larger than the sum of its proper divisors (385927).

806121 is a wasteful number, since it uses less digits than its factorization.

806121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132 (or 2129 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 806121 is about 897.8424137899. The cubic root of 806121 is about 93.0679351005.

Adding to 806121 its reverse (121608), we get a palindrome (927729).

The spelling of 806121 in words is "eight hundred six thousand, one hundred twenty-one".