7117125 has 16 divisors (see below), whose sum is σ = 11843520. Its totient is φ = 3795600.

The previous prime is 7117109. The next prime is 7117129. The reversal of 7117125 is 5217117.

It is a happy number.

It is not a de Polignac number, because 7117125 - 2⁴ = 7117109 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7117095 and 7117104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7117129) 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, 9115 + ... + 9864.

It is an arithmetic number, because the mean of its divisors is an integer number (740220).

Almost surely, 2^7117125 is an apocalyptic number.

7117125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7117125 is a deficient number, since it is larger than the sum of its proper divisors (4726395).

7117125 is a wasteful number, since it uses less digits than its factorization.

7117125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18997 (or 18987 counting only the distinct ones).

The product of its digits is 490, while the sum is 24.

The square root of 7117125 is about 2667.7940325295. The cubic root of 7117125 is about 192.3541369873.

The spelling of 7117125 in words is "seven million, one hundred seventeen thousand, one hundred twenty-five".