164223532 has 24 divisors (see below), whose sum is σ = 321167952. Its totient is φ = 72825600.

The previous prime is 164223511. The next prime is 164223533. The reversal of 164223532 is 235322461.

164223532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 164223532.

It is not an unprimeable number, because it can be changed into a prime (164223533) 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, 43713 + ... + 47320.

It is an arithmetic number, because the mean of its divisors is an integer number (13381998).

Almost surely, 2^164223532 is an apocalyptic number.

It is an amenable number.

164223532 is a deficient number, since it is larger than the sum of its proper divisors (156944420).

164223532 is a wasteful number, since it uses less digits than its factorization.

164223532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91089 (or 91087 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 164223532 is about 12814.9729613449. The cubic root of 164223532 is about 547.6189431814.

Adding to 164223532 its reverse (235322461), we get a palindrome (399545993).

The spelling of 164223532 in words is "one hundred sixty-four million, two hundred twenty-three thousand, five hundred thirty-two".