164143501 has 8 divisors (see below), whose sum is σ = 168471360. Its totient is φ = 159871008.

The previous prime is 164143477. The next prime is 164143547. The reversal of 164143501 is 105341461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164143501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164143591) 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, 7801 + ... + 19726.

It is an arithmetic number, because the mean of its divisors is an integer number (21058920).

Almost surely, 2^164143501 is an apocalyptic number.

It is an amenable number.

164143501 is a deficient number, since it is larger than the sum of its proper divisors (4327859).

164143501 is an equidigital number, since it uses as much as digits as its factorization.

164143501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27683.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 164143501 is about 12811.8500225377. The cubic root of 164143501 is about 547.5299717404.

Adding to 164143501 its reverse (105341461), we get a palindrome (269484962).

The spelling of 164143501 in words is "one hundred sixty-four million, one hundred forty-three thousand, five hundred one".