7209125 has 48 divisors (see below), whose sum is σ = 11524032. Its totient is φ = 4452000.

The previous prime is 7209121. The next prime is 7209157. The reversal of 7209125 is 5219027.

It is not a de Polignac number, because 7209125 - 2² = 7209121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7209094 and 7209103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7209121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67322 + ... + 67428.

It is an arithmetic number, because the mean of its divisors is an integer number (240084).

Almost surely, 2^7209125 is an apocalyptic number.

It is an amenable number.

7209125 is a deficient number, since it is larger than the sum of its proper divisors (4314907).

7209125 is a wasteful number, since it uses less digits than its factorization.

7209125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7209125 is about 2684.9813779615. The cubic root of 7209125 is about 193.1794173970.

The spelling of 7209125 in words is "seven million, two hundred nine thousand, one hundred twenty-five".