164571841 has 12 divisors (see below), whose sum is σ = 192734100. Its totient is φ = 140108640.

The previous prime is 164571833. The next prime is 164571851. The reversal of 164571841 is 148175461.

164571841 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 72335025 + 92236816 = 8505^2 + 9604^2 .

It is not a de Polignac number, because 164571841 - 2³ = 164571833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164571841.

It is not an unprimeable number, because it can be changed into a prime (164571811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3970 + ... + 18571.

It is an arithmetic number, because the mean of its divisors is an integer number (16061175).

Almost surely, 2^164571841 is an apocalyptic number.

It is an amenable number.

164571841 is a deficient number, since it is larger than the sum of its proper divisors (28162259).

164571841 is a wasteful number, since it uses less digits than its factorization.

164571841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22704 (or 22697 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 164571841 is about 12828.5556864364. Note that the first 3 decimals coincide. The cubic root of 164571841 is about 548.0058262563.

The spelling of 164571841 in words is "one hundred sixty-four million, five hundred seventy-one thousand, eight hundred forty-one".