7231225 has 6 divisors (see below), whose sum is σ = 8966750. Its totient is φ = 5784960.

The previous prime is 7231219. The next prime is 7231247. The reversal of 7231225 is 5221327.

It can be written as a sum of positive squares in 3 ways, for example, as 118336 + 7112889 = 344^2 + 2667^2 .

It is not a de Polignac number, because 7231225 - 2⁵ = 7231193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7231196 and 7231205.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144600 + ... + 144649.

Almost surely, 2^7231225 is an apocalyptic number.

It is an amenable number.

7231225 is a deficient number, since it is larger than the sum of its proper divisors (1735525).

7231225 is a wasteful number, since it uses less digits than its factorization.

7231225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289259 (or 289254 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 7231225 is about 2689.0937135027. The cubic root of 7231225 is about 193.3766170099.

The spelling of 7231225 in words is "seven million, two hundred thirty-one thousand, two hundred twenty-five".