164159161 has 2 divisors, whose sum is σ = 164159162. Its totient is φ = 164159160.

The previous prime is 164159159. The next prime is 164159201. The reversal of 164159161 is 161951461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119683600 + 44475561 = 10940^2 + 6669^2 .

It is a cyclic number.

It is not a de Polignac number, because 164159161 - 2¹ = 164159159 is a prime.

Together with 164159159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (164159101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82079580 + 82079581.

It is an arithmetic number, because the mean of its divisors is an integer number (82079581).

Almost surely, 2^164159161 is an apocalyptic number.

It is an amenable number.

164159161 is a deficient number, since it is larger than the sum of its proper divisors (1).

164159161 is an equidigital number, since it uses as much as digits as its factorization.

164159161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 34.

The square root of 164159161 is about 12812.4611609167. The cubic root of 164159161 is about 547.5473834292.

The spelling of 164159161 in words is "one hundred sixty-four million, one hundred fifty-nine thousand, one hundred sixty-one".