165236 has 12 divisors (see below), whose sum is σ = 292740. Its totient is φ = 81600.

The previous prime is 165233. The next prime is 165247. The reversal of 165236 is 632561.

It can be written as a sum of positive squares in 2 ways, for example, as 155236 + 10000 = 394^2 + 100^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165233) 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, 200 + ... + 608.

It is an arithmetic number, because the mean of its divisors is an integer number (24395).

2¹⁶⁵²³⁶ is an apocalyptic number.

It is an amenable number.

165236 is a deficient number, since it is larger than the sum of its proper divisors (127504).

165236 is a wasteful number, since it uses less digits than its factorization.

165236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 165236 is about 406.4923123504. The cubic root of 165236 is about 54.8742028516.

Adding to 165236 its reverse (632561), we get a palindrome (797797).

The spelling of 165236 in words is "one hundred sixty-five thousand, two hundred thirty-six".