164243652 has 12 divisors (see below), whose sum is σ = 383235216. Its totient is φ = 54747880.

The previous prime is 164243633. The next prime is 164243689. The reversal of 164243652 is 256342461.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6843474 + ... + 6843497.

It is an arithmetic number, because the mean of its divisors is an integer number (31936268).

Almost surely, 2^164243652 is an apocalyptic number.

164243652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164243652 is an abundant number, since it is smaller than the sum of its proper divisors (218991564).

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

164243652 is a wasteful number, since it uses less digits than its factorization.

164243652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13686978 (or 13686976 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 164243652 is about 12815.7579565159. The cubic root of 164243652 is about 547.6413062843.

The spelling of 164243652 in words is "one hundred sixty-four million, two hundred forty-three thousand, six hundred fifty-two".