164005222 has 16 divisors (see below), whose sum is σ = 261483552. Its totient is φ = 76881280.

The previous prime is 164005217. The next prime is 164005229. The reversal of 164005222 is 222500461.

It is a junction number, because it is equal to n+sod(n) for n = 164005193 and 164005202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164005229) 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 7 ways as a sum of consecutive naturals, for example, 229 + ... + 18112.

It is an arithmetic number, because the mean of its divisors is an integer number (16342722).

Almost surely, 2^164005222 is an apocalyptic number.

164005222 is a deficient number, since it is larger than the sum of its proper divisors (97478330).

164005222 is a wasteful number, since it uses less digits than its factorization.

164005222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18623.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 164005222 is about 12806.4523580889. The cubic root of 164005222 is about 547.3761771094.

Adding to 164005222 its reverse (222500461), we get a palindrome (386505683).

The spelling of 164005222 in words is "one hundred sixty-four million, five thousand, two hundred twenty-two".