164540201 has 8 divisors (see below), whose sum is σ = 189097920. Its totient is φ = 140245488.

The previous prime is 164540179. The next prime is 164540237. The reversal of 164540201 is 102045461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164540201 - 2¹⁸ = 164278057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164540251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64406 + ... + 66911.

It is an arithmetic number, because the mean of its divisors is an integer number (23637240).

Almost surely, 2^164540201 is an apocalyptic number.

It is an amenable number.

164540201 is a deficient number, since it is larger than the sum of its proper divisors (24557719).

164540201 is a wasteful number, since it uses less digits than its factorization.

164540201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131503.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 164540201 is about 12827.3224407902. The cubic root of 164540201 is about 547.9707047848.

Adding to 164540201 its reverse (102045461), we get a palindrome (266585662).

The spelling of 164540201 in words is "one hundred sixty-four million, five hundred forty thousand, two hundred one".