12040165 has 8 divisors (see below), whose sum is σ = 15298200. Its totient is φ = 9065472.

The previous prime is 12040163. The next prime is 12040177. The reversal of 12040165 is 56104021.

It can be written as a sum of positive squares in 4 ways, for example, as 5919489 + 6120676 = 2433^2 + 2474^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12040165 - 2¹ = 12040163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70740 + ... + 70909.

It is an arithmetic number, because the mean of its divisors is an integer number (1912275).

Almost surely, 2^12040165 is an apocalyptic number.

It is an amenable number.

12040165 is a deficient number, since it is larger than the sum of its proper divisors (3258035).

12040165 is a wasteful number, since it uses less digits than its factorization.

12040165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141671.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12040165 is about 3469.8940906028. The cubic root of 12040165 is about 229.1979943215.

Adding to 12040165 its reverse (56104021), we get a palindrome (68144186).

It can be divided in two parts, 1204016 and 5, that added together give a palindrome (1204021).

The spelling of 12040165 in words is "twelve million, forty thousand, one hundred sixty-five".