123316165 has 16 divisors (see below), whose sum is σ = 169678080. Its totient is φ = 84280320.

The previous prime is 123316163. The next prime is 123316177. The reversal of 123316165 is 561613321.

It is not a de Polignac number, because 123316165 - 2¹ = 123316163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123316163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5221 + ... + 16549.

It is an arithmetic number, because the mean of its divisors is an integer number (10604880).

Almost surely, 2^123316165 is an apocalyptic number.

It is an amenable number.

123316165 is a deficient number, since it is larger than the sum of its proper divisors (46361915).

123316165 is a wasteful number, since it uses less digits than its factorization.

123316165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11652.

The product of its digits is 3240, while the sum is 28.

The square root of 123316165 is about 11104.7811774929. The cubic root of 123316165 is about 497.7447294708.

Adding to 123316165 its reverse (561613321), we get a palindrome (684929486).

It can be divided in two parts, 12331 and 6165, that multiplied together give a triangular number (76020615 = T₁₂₃₃₀).

The spelling of 123316165 in words is "one hundred twenty-three million, three hundred sixteen thousand, one hundred sixty-five".