164590217 has 8 divisors (see below), whose sum is σ = 189003360. Its totient is φ = 141752160.

The previous prime is 164590201. The next prime is 164590229. The reversal of 164590217 is 712095461.

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

It is not a de Polignac number, because 164590217 - 2⁴ = 164590201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164590247) 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, 393548 + ... + 393965.

It is an arithmetic number, because the mean of its divisors is an integer number (23625420).

Almost surely, 2^164590217 is an apocalyptic number.

It is an amenable number.

164590217 is a deficient number, since it is larger than the sum of its proper divisors (24413143).

164590217 is a wasteful number, since it uses less digits than its factorization.

164590217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787543.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 164590217 is about 12829.2718811318. The cubic root of 164590217 is about 548.0262221722.

The spelling of 164590217 in words is "one hundred sixty-four million, five hundred ninety thousand, two hundred seventeen".