12040135 has 8 divisors (see below), whose sum is σ = 14466816. Its totient is φ = 9619680.

The previous prime is 12040123. The next prime is 12040139. The reversal of 12040135 is 53104021.

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

It is not a de Polignac number, because 12040135 - 2⁹ = 12039623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040139) 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, 6537 + ... + 8173.

It is an arithmetic number, because the mean of its divisors is an integer number (1808352).

Almost surely, 2^12040135 is an apocalyptic number.

12040135 is a deficient number, since it is larger than the sum of its proper divisors (2426681).

12040135 is a wasteful number, since it uses less digits than its factorization.

12040135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12040135 is about 3469.8897677016. The cubic root of 12040135 is about 229.1978039601.

Adding to 12040135 its reverse (53104021), we get a palindrome (65144156).

The spelling of 12040135 in words is "twelve million, forty thousand, one hundred thirty-five".