165652 has 6 divisors (see below), whose sum is σ = 289898. Its totient is φ = 82824.

The previous prime is 165617. The next prime is 165653. The reversal of 165652 is 256561.

It can be written as a sum of positive squares in only one way, i.e., 156816 + 8836 = 396^2 + 94^2 .

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 (165653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20703 + ... + 20710.

2¹⁶⁵⁶⁵² is an apocalyptic number.

It is an amenable number.

165652 is a deficient number, since it is larger than the sum of its proper divisors (124246).

165652 is a wasteful number, since it uses less digits than its factorization.

165652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41417 (or 41415 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 165652 is about 407.0036854870. The cubic root of 165652 is about 54.9202148952.

Subtracting 165652 from its reverse (256561), we obtain a palindrome (90909).

The spelling of 165652 in words is "one hundred sixty-five thousand, six hundred fifty-two".