3100725 has 18 divisors (see below), whose sum is σ = 5554146. Its totient is φ = 1653600.

The previous prime is 3100703. The next prime is 3100733. The reversal of 3100725 is 5270013.

3100725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 248004 + 2852721 = 498^2 + 1689^2 .

It is not a de Polignac number, because 3100725 - 2⁶ = 3100661 is a prime.

It is a super-2 number, since 2×3100725² = 19228991051250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3100698 and 3100707.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 6666 + ... + 7115.

Almost surely, 2^3100725 is an apocalyptic number.

It is an amenable number.

3100725 is a deficient number, since it is larger than the sum of its proper divisors (2453421).

3100725 is a wasteful number, since it uses less digits than its factorization.

3100725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13797 (or 13789 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 3100725 is about 1760.8875602945. The cubic root of 3100725 is about 145.8213396032.

Adding to 3100725 its reverse (5270013), we get a palindrome (8370738).

The spelling of 3100725 in words is "three million, one hundred thousand, seven hundred twenty-five".