9125720 has 32 divisors (see below), whose sum is σ = 21243600. Its totient is φ = 3523968.

The previous prime is 9125713. The next prime is 9125729. The reversal of 9125720 is 275219.

It is a self number, because there is not a number n which added to its sum of digits gives 9125720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9125729) 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 7 ways as a sum of consecutive naturals, for example, 2774 + ... + 5093.

Almost surely, 2^9125720 is an apocalyptic number.

It is an amenable number.

9125720 is an abundant number, since it is smaller than the sum of its proper divisors (12117880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9125720 is a wasteful number, since it uses less digits than its factorization.

9125720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907 (or 7903 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 9125720 is about 3020.8806662958. The cubic root of 9125720 is about 208.9724557918.

The spelling of 9125720 in words is "nine million, one hundred twenty-five thousand, seven hundred twenty".