8040121 has 2 divisors, whose sum is σ = 8040122. Its totient is φ = 8040120.

The previous prime is 8040091. The next prime is 8040157. The reversal of 8040121 is 1210408.

It is a happy number.

8040121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5978025 + 2062096 = 2445^2 + 1436^2 .

It is a cyclic number.

It is not a de Polignac number, because 8040121 - 2⁵ = 8040089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8040095 and 8040104.

It is not a weakly prime, because it can be changed into another prime (8040421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4020060 + 4020061.

It is an arithmetic number, because the mean of its divisors is an integer number (4020061).

Almost surely, 2^8040121 is an apocalyptic number.

It is an amenable number.

8040121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8040121 is an equidigital number, since it uses as much as digits as its factorization.

8040121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 8040121 is about 2835.5107123762. The cubic root of 8040121 is about 200.3337842970. Note that the first 3 decimals are identical.

Adding to 8040121 its reverse (1210408), we get a palindrome (9250529).

The spelling of 8040121 in words is "eight million, forty thousand, one hundred twenty-one".