164343522 has 64 divisors (see below), whose sum is σ = 411505920. Its totient is φ = 42663936.

The previous prime is 164343499. The next prime is 164343523. The reversal of 164343522 is 225343461.

It is a self number, because there is not a number n which added to its sum of digits gives 164343522.

It is not an unprimeable number, because it can be changed into a prime (164343523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16738 + ... + 24674.

It is an arithmetic number, because the mean of its divisors is an integer number (6429780).

Almost surely, 2^164343522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164343522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205752960).

164343522 is an abundant number, since it is smaller than the sum of its proper divisors (247162398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164343522 is a wasteful number, since it uses less digits than its factorization.

164343522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7995.

The product of its digits is 17280, while the sum is 30.

The square root of 164343522 is about 12819.6537394736. The cubic root of 164343522 is about 547.7522833901.

Adding to 164343522 its reverse (225343461), we get a palindrome (389686983).

The spelling of 164343522 in words is "one hundred sixty-four million, three hundred forty-three thousand, five hundred twenty-two".