165249 has 24 divisors (see below), whose sum is σ = 283712. Its totient is φ = 90720.

The previous prime is 165247. The next prime is 165287. The reversal of 165249 is 942561.

165249 is a `hidden beast` number, since 1 + 652 + 4 + 9 = 666.

It is not a de Polignac number, because 165249 - 2¹ = 165247 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2679 + ... + 2739.

2¹⁶⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

165249 is a deficient number, since it is larger than the sum of its proper divisors (118463).

165249 is a wasteful number, since it uses less digits than its factorization.

165249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 114 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 165249 is about 406.5083024982. The cubic root of 165249 is about 54.8756418962.

It can be divided in two parts, 165 and 249, that added together give a palindrome (414).

The spelling of 165249 in words is "one hundred sixty-five thousand, two hundred forty-nine".