164223412 has 6 divisors (see below), whose sum is σ = 287390978. Its totient is φ = 82111704.

The previous prime is 164223401. The next prime is 164223419. The reversal of 164223412 is 214322461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86007076 + 78216336 = 9274^2 + 8844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164223419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20527923 + ... + 20527930.

Almost surely, 2^164223412 is an apocalyptic number.

It is an amenable number.

164223412 is a deficient number, since it is larger than the sum of its proper divisors (123167566).

164223412 is a wasteful number, since it uses less digits than its factorization.

164223412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41055857 (or 41055855 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 164223412 is about 12814.9682793209. The cubic root of 164223412 is about 547.6188097976.

Adding to 164223412 its reverse (214322461), we get a palindrome (378545873).

The spelling of 164223412 in words is "one hundred sixty-four million, two hundred twenty-three thousand, four hundred twelve".