168471425 has 6 divisors (see below), whose sum is σ = 208904598. Its totient is φ = 134777120.

The previous prime is 168471383. The next prime is 168471431. The reversal of 168471425 is 524174861.

It can be written as a sum of positive squares in 3 ways, for example, as 42941809 + 125529616 = 6553^2 + 11204^2 .

It is not a de Polignac number, because 168471425 - 2⁸ = 168471169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3369404 + ... + 3369453.

It is an arithmetic number, because the mean of its divisors is an integer number (34817433).

Almost surely, 2^168471425 is an apocalyptic number.

It is an amenable number.

168471425 is a deficient number, since it is larger than the sum of its proper divisors (40433173).

168471425 is an equidigital number, since it uses as much as digits as its factorization.

168471425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738867 (or 6738862 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 168471425 is about 12979.6542712046. The cubic root of 168471425 is about 552.3004746255.

The spelling of 168471425 in words is "one hundred sixty-eight million, four hundred seventy-one thousand, four hundred twenty-five".