164089121 has 8 divisors (see below), whose sum is σ = 188579520. Its totient is φ = 139861008.

The previous prime is 164089109. The next prime is 164089127. The reversal of 164089121 is 121980461.

164089121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-164089121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164089127) 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, 64226 + ... + 66731.

It is an arithmetic number, because the mean of its divisors is an integer number (23572440).

Almost surely, 2^164089121 is an apocalyptic number.

It is an amenable number.

164089121 is a deficient number, since it is larger than the sum of its proper divisors (24490399).

164089121 is a wasteful number, since it uses less digits than its factorization.

164089121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131143.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 164089121 is about 12809.7275927320. The cubic root of 164089121 is about 547.4695003269.

The spelling of 164089121 in words is "one hundred sixty-four million, eighty-nine thousand, one hundred twenty-one".