104725209 has 8 divisors (see below), whose sum is σ = 139946400. Its totient is φ = 69660416.

The previous prime is 104725189. The next prime is 104725211. The reversal of 104725209 is 902527401.

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 104725209 - 2²⁰ = 103676633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104725009) 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, 37527 + ... + 40220.

It is an arithmetic number, because the mean of its divisors is an integer number (17493300).

Almost surely, 2^104725209 is an apocalyptic number.

It is an amenable number.

104725209 is a deficient number, since it is larger than the sum of its proper divisors (35221191).

104725209 is an equidigital number, since it uses as much as digits as its factorization.

104725209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78199.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 104725209 is about 10233.5335539588. The cubic root of 104725209 is about 471.3574893352.

The spelling of 104725209 in words is "one hundred four million, seven hundred twenty-five thousand, two hundred nine".