164307425 has 6 divisors (see below), whose sum is σ = 203741238. Its totient is φ = 131445920.

The previous prime is 164307413. The next prime is 164307443. The reversal of 164307425 is 524703461.

It can be written as a sum of positive squares in 3 ways, for example, as 2534464 + 161772961 = 1592^2 + 12719^2 .

It is a de Polignac number, because none of the positive numbers 2^k-164307425 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 164307391 and 164307400.

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 5 ways as a sum of consecutive naturals, for example, 3286124 + ... + 3286173.

It is an arithmetic number, because the mean of its divisors is an integer number (33956873).

Almost surely, 2^164307425 is an apocalyptic number.

It is an amenable number.

164307425 is a deficient number, since it is larger than the sum of its proper divisors (39433813).

164307425 is an equidigital number, since it uses as much as digits as its factorization.

164307425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572307 (or 6572302 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 164307425 is about 12818.2457848178. The cubic root of 164307425 is about 547.7121770289.

The spelling of 164307425 in words is "one hundred sixty-four million, three hundred seven thousand, four hundred twenty-five".