162446161 has 4 divisors (see below), whose sum is σ = 162521524. Its totient is φ = 162370800.

The previous prime is 162446159. The next prime is 162446213. The reversal of 162446161 is 161644261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161644261 = 31 ⋅5214331.

It can be written as a sum of positive squares in 2 ways, for example, as 124746561 + 37699600 = 11169^2 + 6140^2 .

It is a cyclic number.

It is not a de Polignac number, because 162446161 - 2¹ = 162446159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162446261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34350 + ... + 38791.

It is an arithmetic number, because the mean of its divisors is an integer number (40630381).

Almost surely, 2^162446161 is an apocalyptic number.

It is an amenable number.

162446161 is a deficient number, since it is larger than the sum of its proper divisors (75363).

162446161 is an equidigital number, since it uses as much as digits as its factorization.

162446161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75362.

The product of its digits is 6912, while the sum is 31.

The square root of 162446161 is about 12745.4368697193. The cubic root of 162446161 is about 545.6361687183.

The spelling of 162446161 in words is "one hundred sixty-two million, four hundred forty-six thousand, one hundred sixty-one".