164589242 has 16 divisors (see below), whose sum is σ = 258966720. Its totient is φ = 78304512.

The previous prime is 164589241. The next prime is 164589281. The reversal of 164589242 is 242985461.

It is a self number, because there is not a number n which added to its sum of digits gives 164589242.

It is not an unprimeable number, because it can be changed into a prime (164589241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392 + ... + 18147.

It is an arithmetic number, because the mean of its divisors is an integer number (16185420).

Almost surely, 2^164589242 is an apocalyptic number.

164589242 is a deficient number, since it is larger than the sum of its proper divisors (94377478).

164589242 is a wasteful number, since it uses less digits than its factorization.

164589242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18757.

The product of its digits is 138240, while the sum is 41.

The square root of 164589242 is about 12829.2338820368. The cubic root of 164589242 is about 548.0251400369.

The spelling of 164589242 in words is "one hundred sixty-four million, five hundred eighty-nine thousand, two hundred forty-two".