164225 has 6 divisors (see below), whose sum is σ = 203670. Its totient is φ = 131360.

The previous prime is 164209. The next prime is 164231. The reversal of 164225 is 522461.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 35344 + 128881 = 188^2 + 359^2 .

It is not a de Polignac number, because 164225 - 2⁴ = 164209 is a prime.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 164197 and 164206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3260 + ... + 3309.

It is an arithmetic number, because the mean of its divisors is an integer number (33945).

2¹⁶⁴²²⁵ is an apocalyptic number.

It is an amenable number.

164225 is a deficient number, since it is larger than the sum of its proper divisors (39445).

164225 is an equidigital number, since it uses as much as digits as its factorization.

164225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579 (or 6574 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 164225 is about 405.2468383590. The cubic root of 164225 is about 54.7620574905.

Adding to 164225 its reverse (522461), we get a palindrome (686686).

It can be divided in two parts, 16 and 4225, that multiplied together give a square (67600 = 260²).

The spelling of 164225 in words is "one hundred sixty-four thousand, two hundred twenty-five".