8055121 has 2 divisors, whose sum is σ = 8055122. Its totient is φ = 8055120.

The previous prime is 8055119. The next prime is 8055143. The reversal of 8055121 is 1215508.

It is an a-pointer prime, because the next prime (8055143) can be obtained adding 8055121 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7349521 + 705600 = 2711^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 8055121 - 2¹ = 8055119 is a prime.

Together with 8055119, it forms a pair of twin primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8055092 and 8055101.

It is not a weakly prime, because it can be changed into another prime (8055101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4027560 + 4027561.

It is an arithmetic number, because the mean of its divisors is an integer number (4027561).

Almost surely, 2^8055121 is an apocalyptic number.

It is an amenable number.

8055121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8055121 is an equidigital number, since it uses as much as digits as its factorization.

8055121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 8055121 is about 2838.1545060127. The cubic root of 8055121 is about 200.4582907127.

The spelling of 8055121 in words is "eight million, fifty-five thousand, one hundred twenty-one".