164320532 has 12 divisors (see below), whose sum is σ = 290106516. Its totient is φ = 81432960.

The previous prime is 164320523. The next prime is 164320537. The reversal of 164320532 is 235023461.

It can be written as a sum of positive squares in 2 ways, for example, as 53523856 + 110796676 = 7316^2 + 10526^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164320537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181319 + ... + 182222.

It is an arithmetic number, because the mean of its divisors is an integer number (24175543).

Almost surely, 2^164320532 is an apocalyptic number.

It is an amenable number.

164320532 is a deficient number, since it is larger than the sum of its proper divisors (125785984).

164320532 is a wasteful number, since it uses less digits than its factorization.

164320532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363658 (or 363656 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 164320532 is about 12818.7570380283. The cubic root of 164320532 is about 547.7267405271.

Adding to 164320532 its reverse (235023461), we get a palindrome (399343993).

The spelling of 164320532 in words is "one hundred sixty-four million, three hundred twenty thousand, five hundred thirty-two".