165237 has 4 divisors (see below), whose sum is σ = 220320. Its totient is φ = 110156.

The previous prime is 165233. The next prime is 165247. The reversal of 165237 is 732561.

165237 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165237 - 2² = 165233 is a prime.

It is a D-number.

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, 27537 + ... + 27542.

It is an arithmetic number, because the mean of its divisors is an integer number (55080).

2¹⁶⁵²³⁷ is an apocalyptic number.

It is an amenable number.

165237 is a deficient number, since it is larger than the sum of its proper divisors (55083).

165237 is an equidigital number, since it uses as much as digits as its factorization.

165237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55082.

The product of its digits is 1260, while the sum is 24.

The square root of 165237 is about 406.4935423841. The cubic root of 165237 is about 54.8743135500.

Adding to 165237 its reverse (732561), we get a palindrome (897798).

It can be divided in two parts, 16 and 5237, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 165237 in words is "one hundred sixty-five thousand, two hundred thirty-seven".