12409135 has 8 divisors (see below), whose sum is σ = 14913936. Its totient is φ = 9912000.

The previous prime is 12409127. The next prime is 12409139. The reversal of 12409135 is 53190421.

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

It is not a de Polignac number, because 12409135 - 2³ = 12409127 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 (12409139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2635 + ... + 5635.

It is an arithmetic number, because the mean of its divisors is an integer number (1864242).

Almost surely, 2^12409135 is an apocalyptic number.

12409135 is a deficient number, since it is larger than the sum of its proper divisors (2504801).

12409135 is an equidigital number, since it uses as much as digits as its factorization.

12409135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12409135 is about 3522.6602163706. The cubic root of 12409135 is about 231.5157295950.

Adding to 12409135 its reverse (53190421), we get a palindrome (65599556).

It can be divided in two parts, 12409 and 135, that added together give a square (12544 = 112²).

The spelling of 12409135 in words is "twelve million, four hundred nine thousand, one hundred thirty-five".