9813125 has 20 divisors (see below), whose sum is σ = 14020512. Its totient is φ = 6726000.

The previous prime is 9813061. The next prime is 9813127. The reversal of 9813125 is 5213189.

9813125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9813125 - 2⁶ = 9813061 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 (9813127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3254 + ... + 5496.

Almost surely, 2^9813125 is an apocalyptic number.

It is an amenable number.

9813125 is a deficient number, since it is larger than the sum of its proper divisors (4207387).

9813125 is an equidigital number, since it uses as much as digits as its factorization.

9813125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270 (or 2255 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 9813125 is about 3132.5907808075. The cubic root of 9813125 is about 214.0929880918.

The spelling of 9813125 in words is "nine million, eight hundred thirteen thousand, one hundred twenty-five".