7229225 has 6 divisors (see below), whose sum is σ = 8964270. Its totient is φ = 5783360.

The previous prime is 7229219. The next prime is 7229239. The reversal of 7229225 is 5229227.

It can be written as a sum of positive squares in 3 ways, for example, as 1024144 + 6205081 = 1012^2 + 2491^2 .

It is not a de Polignac number, because 7229225 - 2¹⁰ = 7228201 is a prime.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 144560 + ... + 144609.

It is an arithmetic number, because the mean of its divisors is an integer number (1494045).

Almost surely, 2^7229225 is an apocalyptic number.

It is an amenable number.

7229225 is a deficient number, since it is larger than the sum of its proper divisors (1735045).

7229225 is a wasteful number, since it uses less digits than its factorization.

7229225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289179 (or 289174 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 7229225 is about 2688.7218152870. The cubic root of 7229225 is about 193.3587874400.

The spelling of 7229225 in words is "seven million, two hundred twenty-nine thousand, two hundred twenty-five".