164208009 has 8 divisors (see below), whose sum is σ = 250221760. Its totient is φ = 93833136.

The previous prime is 164207999. The next prime is 164208029. The reversal of 164208009 is 900802461.

164208009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 164208009 - 2⁷ = 164207881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164208029) 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, 3909694 + ... + 3909735.

It is an arithmetic number, because the mean of its divisors is an integer number (31277720).

Almost surely, 2^164208009 is an apocalyptic number.

It is an amenable number.

164208009 is a deficient number, since it is larger than the sum of its proper divisors (86013751).

164208009 is an equidigital number, since it uses as much as digits as its factorization.

164208009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7819439.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 164208009 is about 12814.3672883213. The cubic root of 164208009 is about 547.6016883325.

The spelling of 164208009 in words is "one hundred sixty-four million, two hundred eight thousand, nine".