164125225 has 24 divisors (see below), whose sum is σ = 235083168. Its totient is φ = 112339200.

The previous prime is 164125219. The next prime is 164125301. The reversal of 164125225 is 522521461.

It is not a de Polignac number, because 164125225 - 2⁵ = 164125193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164125193 and 164125202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12879 + ... + 22228.

It is an arithmetic number, because the mean of its divisors is an integer number (9795132).

Almost surely, 2^164125225 is an apocalyptic number.

It is an amenable number.

164125225 is a deficient number, since it is larger than the sum of its proper divisors (70957943).

164125225 is a wasteful number, since it uses less digits than its factorization.

164125225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35145 (or 35140 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 164125225 is about 12811.1367567441. The cubic root of 164125225 is about 547.5096500318.

Adding to 164125225 its reverse (522521461), we get a palindrome (686646686).

The spelling of 164125225 in words is "one hundred sixty-four million, one hundred twenty-five thousand, two hundred twenty-five".