162205 has 4 divisors (see below), whose sum is σ = 194652. Its totient is φ = 129760.

The previous prime is 162143. The next prime is 162209. The reversal of 162205 is 502261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114244 + 47961 = 338^2 + 219^2 .

It is a de Polignac number, because none of the positive numbers 2^k-162205 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16216 + ... + 16225.

It is an arithmetic number, because the mean of its divisors is an integer number (48663).

2¹⁶²²⁰⁵ is an apocalyptic number.

It is an amenable number.

162205 is a deficient number, since it is larger than the sum of its proper divisors (32447).

162205 is an equidigital number, since it uses as much as digits as its factorization.

162205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32446.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 162205 is about 402.7468187336. The cubic root of 162205 is about 54.5366025197.

Adding to 162205 its reverse (502261), we get a palindrome (664466).

The spelling of 162205 in words is "one hundred sixty-two thousand, two hundred five".