164242111 has 16 divisors (see below), whose sum is σ = 184757760. Its totient is φ = 144719680.

The previous prime is 164242097. The next prime is 164242121. The reversal of 164242111 is 111242461.

It is a cyclic number.

It is not a de Polignac number, because 164242111 - 2⁵ = 164242079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164242121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53835 + ... + 56803.

It is an arithmetic number, because the mean of its divisors is an integer number (11547360).

Almost surely, 2^164242111 is an apocalyptic number.

164242111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

164242111 is a deficient number, since it is larger than the sum of its proper divisors (20515649).

164242111 is a wasteful number, since it uses less digits than its factorization.

164242111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134.

The product of its digits is 384, while the sum is 22.

The square root of 164242111 is about 12815.6978350771. The cubic root of 164242111 is about 547.6395935486.

Adding to 164242111 its reverse (111242461), we get a palindrome (275484572).

The spelling of 164242111 in words is "one hundred sixty-four million, two hundred forty-two thousand, one hundred eleven".