164838081 has 16 divisors (see below), whose sum is σ = 225832320. Its totient is φ = 106884480.

The previous prime is 164838077. The next prime is 164838097. The reversal of 164838081 is 180838461.

164838081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164838081 - 2² = 164838077 is a prime.

It is a super-2 number, since 2×164838081² = 54343185895525122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164838031) 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, 42291 + ... + 46023.

It is an arithmetic number, because the mean of its divisors is an integer number (14114520).

Almost surely, 2^164838081 is an apocalyptic number.

It is an amenable number.

164838081 is a deficient number, since it is larger than the sum of its proper divisors (60994239).

164838081 is a wasteful number, since it uses less digits than its factorization.

164838081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 164838081 is about 12838.9283431290. The cubic root of 164838081 is about 548.3011835151.

It can be divided in two parts, 1648380 and 81, that added together give a palindrome (1648461).

The spelling of 164838081 in words is "one hundred sixty-four million, eight hundred thirty-eight thousand, eighty-one".