9135725 has 12 divisors (see below), whose sum is σ = 11719860. Its totient is φ = 7056000.

The previous prime is 9135703. The next prime is 9135757. The reversal of 9135725 is 5275319.

It can be written as a sum of positive squares in 6 ways, for example, as 391876 + 8743849 = 626^2 + 2957^2 .

It is not a de Polignac number, because 9135725 - 2¹⁰ = 9134701 is a prime.

It is a super-2 number, since 2×9135725² = 166922942551250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9135691 and 9135700.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5576 + ... + 7025.

It is an arithmetic number, because the mean of its divisors is an integer number (976655).

Almost surely, 2^9135725 is an apocalyptic number.

It is an amenable number.

9135725 is a deficient number, since it is larger than the sum of its proper divisors (2584135).

9135725 is a wasteful number, since it uses less digits than its factorization.

9135725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12640 (or 12635 counting only the distinct ones).

The product of its digits is 9450, while the sum is 32.

The square root of 9135725 is about 3022.5361867147. The cubic root of 9135725 is about 209.0487970125.

The spelling of 9135725 in words is "nine million, one hundred thirty-five thousand, seven hundred twenty-five".