7187125 has 16 divisors (see below), whose sum is σ = 9786816. Its totient is φ = 5226000.

The previous prime is 7187119. The next prime is 7187129. The reversal of 7187125 is 5217817.

It is a happy number.

It is not a de Polignac number, because 7187125 - 2⁵ = 7187093 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7187129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239 + ... + 3988.

It is an arithmetic number, because the mean of its divisors is an integer number (611676).

Almost surely, 2^7187125 is an apocalyptic number.

It is an amenable number.

7187125 is a deficient number, since it is larger than the sum of its proper divisors (2599691).

7187125 is a wasteful number, since it uses less digits than its factorization.

7187125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253 (or 5243 counting only the distinct ones).

The product of its digits is 3920, while the sum is 31.

The square root of 7187125 is about 2680.8813849180. The cubic root of 7187125 is about 192.9827093963.

The spelling of 7187125 in words is "seven million, one hundred eighty-seven thousand, one hundred twenty-five".