164701225 has 12 divisors (see below), whose sum is σ = 219939916. Its totient is φ = 121625280.

The previous prime is 164701217. The next prime is 164701261. The reversal of 164701225 is 522107461.

It can be written as a sum of positive squares in 6 ways, for example, as 10419984 + 154281241 = 3228^2 + 12421^2 .

It is not a de Polignac number, because 164701225 - 2³ = 164701217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164701193 and 164701202.

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 11 ways as a sum of consecutive naturals, for example, 253062 + ... + 253711.

Almost surely, 2^164701225 is an apocalyptic number.

It is an amenable number.

164701225 is a deficient number, since it is larger than the sum of its proper divisors (55238691).

164701225 is a wasteful number, since it uses less digits than its factorization.

164701225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506796 (or 506791 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 164701225 is about 12833.5975081035. The cubic root of 164701225 is about 548.1494000546.

Adding to 164701225 its reverse (522107461), we get a palindrome (686808686).

The spelling of 164701225 in words is "one hundred sixty-four million, seven hundred one thousand, two hundred twenty-five".