164568141 has 6 divisors (see below), whose sum is σ = 237709550. Its totient is φ = 109712088.

The previous prime is 164568071. The next prime is 164568149. The reversal of 164568141 is 141865461.

164568141 is a `hidden beast` number, since 1 + 645 + 6 + 8 + 1 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 84107241 + 80460900 = 9171^2 + 8970^2 .

It is not a de Polignac number, because 164568141 - 2⁹ = 164567629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164568096 and 164568105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164568149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9142666 + ... + 9142683.

Almost surely, 2^164568141 is an apocalyptic number.

It is an amenable number.

164568141 is a deficient number, since it is larger than the sum of its proper divisors (73141409).

164568141 is a wasteful number, since it uses less digits than its factorization.

164568141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18285355 (or 18285352 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 164568141 is about 12828.4114760948. The cubic root of 164568141 is about 548.0017193634.

The spelling of 164568141 in words is "one hundred sixty-four million, five hundred sixty-eight thousand, one hundred forty-one".