164201185 has 8 divisors (see below), whose sum is σ = 197540136. Its totient is φ = 131028480.

The previous prime is 164201183. The next prime is 164201207. The reversal of 164201185 is 581102461.

It can be written as a sum of positive squares in 4 ways, for example, as 7225344 + 156975841 = 2688^2 + 12529^2 .

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

It is not a de Polignac number, because 164201185 - 2¹ = 164201183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164201183) 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, 39376 + ... + 43345.

It is an arithmetic number, because the mean of its divisors is an integer number (24692517).

Almost surely, 2^164201185 is an apocalyptic number.

It is an amenable number.

164201185 is a deficient number, since it is larger than the sum of its proper divisors (33338951).

164201185 is an equidigital number, since it uses as much as digits as its factorization.

164201185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83123.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 164201185 is about 12814.1010219211. The cubic root of 164201185 is about 547.5941026577.

The spelling of 164201185 in words is "one hundred sixty-four million, two hundred one thousand, one hundred eighty-five".