71604125 has 8 divisors (see below), whose sum is σ = 89362104. Its totient is φ = 57283200.

The previous prime is 71604067. The next prime is 71604151. The reversal of 71604125 is 52140617.

It can be written as a sum of positive squares in 4 ways, for example, as 674041 + 70930084 = 821^2 + 8422^2 .

It is not a de Polignac number, because 71604125 - 2⁶ = 71604061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71604094 and 71604103.

It is a congruent number.

It is an unprimeable number.

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, 286292 + ... + 286541.

It is an arithmetic number, because the mean of its divisors is an integer number (11170263).

Almost surely, 2^71604125 is an apocalyptic number.

It is an amenable number.

71604125 is a deficient number, since it is larger than the sum of its proper divisors (17757979).

71604125 is an equidigital number, since it uses as much as digits as its factorization.

71604125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572848 (or 572838 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 71604125 is about 8461.9220629831. The cubic root of 71604125 is about 415.2529062789.

The spelling of 71604125 in words is "seventy-one million, six hundred four thousand, one hundred twenty-five".