164245212 has 72 divisors (see below), whose sum is σ = 442436400. Its totient is φ = 52629696.

The previous prime is 164245199. The next prime is 164245217. The reversal of 164245212 is 212542461.

164245212 is a `hidden beast` number, since 1 + 642 + 4 + 5 + 2 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164245217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 717114 + ... + 717342.

It is an arithmetic number, because the mean of its divisors is an integer number (6144950).

Almost surely, 2^164245212 is an apocalyptic number.

164245212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164245212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221218200).

164245212 is an abundant number, since it is smaller than the sum of its proper divisors (278191188).

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

164245212 is a wasteful number, since it uses less digits than its factorization.

164245212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 263 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 164245212 is about 12815.8188189440. The cubic root of 164245212 is about 547.6430401265.

Adding to 164245212 its reverse (212542461), we get a palindrome (376787673).

The spelling of 164245212 in words is "one hundred sixty-four million, two hundred forty-five thousand, two hundred twelve".