10125509 has 8 divisors (see below), whose sum is σ = 10412160. Its totient is φ = 9842976.

The previous prime is 10125503. The next prime is 10125541. The reversal of 10125509 is 90552101.

10125509 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10125509 - 2²⁰ = 9076933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10125503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4337 + ... + 6249.

It is an arithmetic number, because the mean of its divisors is an integer number (1301520).

Almost surely, 2^10125509 is an apocalyptic number.

It is an amenable number.

10125509 is a deficient number, since it is larger than the sum of its proper divisors (286651).

10125509 is an equidigital number, since it uses as much as digits as its factorization.

10125509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 10125509 is about 3182.0604959680. The cubic root of 10125509 is about 216.3410606954.

The spelling of 10125509 in words is "ten million, one hundred twenty-five thousand, five hundred nine".