162145 has 4 divisors (see below), whose sum is σ = 194580. Its totient is φ = 129712.

The previous prime is 162143. The next prime is 162209. The reversal of 162145 is 541261.

162145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541261 = 7 ⋅77323.

It can be written as a sum of positive squares in 2 ways, for example, as 87616 + 74529 = 296^2 + 273^2 .

It is a cyclic number.

It is not a de Polignac number, because 162145 - 2¹ = 162143 is a prime.

162145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (162143) 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, 16210 + ... + 16219.

It is an arithmetic number, because the mean of its divisors is an integer number (48645).

2¹⁶²¹⁴⁵ is an apocalyptic number.

It is an amenable number.

162145 is a deficient number, since it is larger than the sum of its proper divisors (32435).

162145 is an equidigital number, since it uses as much as digits as its factorization.

162145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32434.

The product of its digits is 240, while the sum is 19.

The square root of 162145 is about 402.6723233598. The cubic root of 162145 is about 54.5298772858.

The spelling of 162145 in words is "one hundred sixty-two thousand, one hundred forty-five".