8225121 has 16 divisors (see below), whose sum is σ = 11245568. Its totient is φ = 5346000.

The previous prime is 8225117. The next prime is 8225149. The reversal of 8225121 is 1215228.

It is a happy number.

8225121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8225121 - 2² = 8225117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8225101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30216 + ... + 30486.

It is an arithmetic number, because the mean of its divisors is an integer number (702848).

Almost surely, 2^8225121 is an apocalyptic number.

It is an amenable number.

8225121 is a deficient number, since it is larger than the sum of its proper divisors (3020447).

8225121 is a wasteful number, since it uses less digits than its factorization.

8225121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its digits is 320, while the sum is 21.

The square root of 8225121 is about 2867.9471752457. The cubic root of 8225121 is about 201.8586813419.

It can be divided in two parts, 82251 and 21, that multiplied together give a palindrome (1727271).

The spelling of 8225121 in words is "eight million, two hundred twenty-five thousand, one hundred twenty-one".