162065161 has 4 divisors (see below), whose sum is σ = 164484112. Its totient is φ = 159646212.

The previous prime is 162065159. The next prime is 162065171. The reversal of 162065161 is 161560261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161560261 = 2719 ⋅59419.

It is a cyclic number.

It is not a de Polignac number, because 162065161 - 2¹ = 162065159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162065171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1209375 + ... + 1209508.

It is an arithmetic number, because the mean of its divisors is an integer number (41121028).

Almost surely, 2^162065161 is an apocalyptic number.

It is an amenable number.

162065161 is a deficient number, since it is larger than the sum of its proper divisors (2418951).

162065161 is an equidigital number, since it uses as much as digits as its factorization.

162065161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418950.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 162065161 is about 12730.4815698386. The cubic root of 162065161 is about 545.2092578022.

The spelling of 162065161 in words is "one hundred sixty-two million, sixty-five thousand, one hundred sixty-one".