165105236 has 12 divisors (see below), whose sum is σ = 298897620. Its totient is φ = 79705920.

The previous prime is 165105233. The next prime is 165105271. The reversal of 165105236 is 632501561.

165105236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 91317136 + 73788100 = 9556^2 + 8590^2 .

It is a super-3 number, since 3×165105236³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 165105199 and 165105208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165105233) 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, 711545 + ... + 711776.

It is an arithmetic number, because the mean of its divisors is an integer number (24908135).

Almost surely, 2^165105236 is an apocalyptic number.

It is an amenable number.

165105236 is a deficient number, since it is larger than the sum of its proper divisors (133792384).

165105236 is a wasteful number, since it uses less digits than its factorization.

165105236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423354 (or 1423352 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 165105236 is about 12849.3282314680. The cubic root of 165105236 is about 548.5972363411.

Adding to 165105236 its reverse (632501561), we get a palindrome (797606797).

The spelling of 165105236 in words is "one hundred sixty-five million, one hundred five thousand, two hundred thirty-six".