164717231 has 8 divisors (see below), whose sum is σ = 190900224. Its totient is φ = 139197240.

The previous prime is 164717221. The next prime is 164717249. The reversal of 164717231 is 132717461.

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

It is not a de Polignac number, because 164717231 - 2¹⁰ = 164716207 is a prime.

It is a super-2 number, since 2×164717231² = 54263532376614722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164717221) 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, 165215 + ... + 166208.

It is an arithmetic number, because the mean of its divisors is an integer number (23862528).

Almost surely, 2^164717231 is an apocalyptic number.

164717231 is a deficient number, since it is larger than the sum of its proper divisors (26182993).

164717231 is an equidigital number, since it uses as much as digits as its factorization.

164717231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331501.

The product of its digits is 7056, while the sum is 32.

The square root of 164717231 is about 12834.2210905064. The cubic root of 164717231 is about 548.1671562372.

The spelling of 164717231 in words is "one hundred sixty-four million, seven hundred seventeen thousand, two hundred thirty-one".