415728125 has 12 divisors (see below), whose sum is σ = 519630804. Its totient is φ = 332580000.

The previous prime is 415728121. The next prime is 415728139. The reversal of 415728125 is 521827514.

It can be written as a sum of positive squares in 6 ways, for example, as 412049401 + 3678724 = 20299^2 + 1918^2 .

It is not a de Polignac number, because 415728125 - 2² = 415728121 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 (415728121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63392 + ... + 69641.

It is an arithmetic number, because the mean of its divisors is an integer number (43302567).

Almost surely, 2^415728125 is an apocalyptic number.

It is an amenable number.

415728125 is a deficient number, since it is larger than the sum of its proper divisors (103902679).

415728125 is an frugal number, since it uses more digits than its factorization.

415728125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133058 (or 133038 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 415728125 is about 20389.4120807835. The cubic root of 415728125 is about 746.3395714887.

The spelling of 415728125 in words is "four hundred fifteen million, seven hundred twenty-eight thousand, one hundred twenty-five".