7091125 has 32 divisors (see below), whose sum is σ = 9704448. Its totient is φ = 5152000.

The previous prime is 7091113. The next prime is 7091129. The reversal of 7091125 is 5211907.

It is not a de Polignac number, because 7091125 - 2⁹ = 7090613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7091125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7091129) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 99840 + ... + 99910.

It is an arithmetic number, because the mean of its divisors is an integer number (303264).

Almost surely, 2^7091125 is an apocalyptic number.

It is an amenable number.

7091125 is a deficient number, since it is larger than the sum of its proper divisors (2613323).

7091125 is a wasteful number, since it uses less digits than its factorization.

7091125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 7091125 is about 2662.9166340687. The cubic root of 7091125 is about 192.1196176637.

The spelling of 7091125 in words is "seven million, ninety-one thousand, one hundred twenty-five".