164200325 has 12 divisors (see below), whose sum is σ = 205479780. Its totient is φ = 130152960.

The previous prime is 164200321. The next prime is 164200327. The reversal of 164200325 is 523002461.

It can be written as a sum of positive squares in 6 ways, for example, as 2427364 + 161772961 = 1558^2 + 12719^2 .

It is not a de Polignac number, because 164200325 - 2² = 164200321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164200325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164200321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27404 + ... + 32853.

It is an arithmetic number, because the mean of its divisors is an integer number (17123315).

Almost surely, 2^164200325 is an apocalyptic number.

It is an amenable number.

164200325 is a deficient number, since it is larger than the sum of its proper divisors (41279455).

164200325 is a wasteful number, since it uses less digits than its factorization.

164200325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60376 (or 60371 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 164200325 is about 12814.0674650948. The cubic root of 164200325 is about 547.5931466521.

Adding to 164200325 its reverse (523002461), we get a palindrome (687202786).

The spelling of 164200325 in words is "one hundred sixty-four million, two hundred thousand, three hundred twenty-five".