12280135 has 12 divisors (see below), whose sum is σ = 17142408. Its totient is φ = 8420496.

The previous prime is 12280127. The next prime is 12280141. The reversal of 12280135 is 53108221.

It is not a de Polignac number, because 12280135 - 2³ = 12280127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24817 + ... + 25306.

It is an arithmetic number, because the mean of its divisors is an integer number (1428534).

Almost surely, 2^12280135 is an apocalyptic number.

12280135 is a deficient number, since it is larger than the sum of its proper divisors (4862273).

12280135 is an equidigital number, since it uses as much as digits as its factorization.

12280135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50142 (or 50135 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12280135 is about 3504.3023556765. The cubic root of 12280135 is about 230.7106876995.

Adding to 12280135 its reverse (53108221), we get a palindrome (65388356).

The spelling of 12280135 in words is "twelve million, two hundred eighty thousand, one hundred thirty-five".