164205242 has 8 divisors (see below), whose sum is σ = 246410100. Its totient is φ = 82068544.

The previous prime is 164205241. The next prime is 164205259. The reversal of 164205242 is 242502461.

164205242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 164121721 + 83521 = 12811^2 + 289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (164205241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10517 + ... + 20952.

Almost surely, 2^164205242 is an apocalyptic number.

164205242 is a deficient number, since it is larger than the sum of its proper divisors (82204858).

164205242 is a wasteful number, since it uses less digits than its factorization.

164205242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34080.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 164205242 is about 12814.2593231135. The cubic root of 164205242 is about 547.5986125134.

The spelling of 164205242 in words is "one hundred sixty-four million, two hundred five thousand, two hundred forty-two".