7125125 has 32 divisors (see below), whose sum is σ = 10782720. Its totient is φ = 4588800.

The previous prime is 7125121. The next prime is 7125169. The reversal of 7125125 is 5215217.

It is a happy number.

It is not a de Polignac number, because 7125125 - 2² = 7125121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7125125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125121) 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 31 ways as a sum of consecutive naturals, for example, 14636 + ... + 15114.

It is an arithmetic number, because the mean of its divisors is an integer number (336960).

Almost surely, 2^7125125 is an apocalyptic number.

It is an amenable number.

7125125 is a deficient number, since it is larger than the sum of its proper divisors (3657595).

7125125 is a wasteful number, since it uses less digits than its factorization.

7125125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 508 counting only the distinct ones).

The product of its digits is 700, while the sum is 23.

The square root of 7125125 is about 2669.2929775504. The cubic root of 7125125 is about 192.4261818500.

The spelling of 7125125 in words is "seven million, one hundred twenty-five thousand, one hundred twenty-five".