12312235 has 16 divisors (see below), whose sum is σ = 15988896. Its totient is φ = 9047808.

The previous prime is 12312227. The next prime is 12312241. The reversal of 12312235 is 53221321.

It is a cyclic number.

It is not a de Polignac number, because 12312235 - 2³ = 12312227 is a prime.

It is a super-2 number, since 2×12312235² = 303182261390450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19647 + ... + 20263.

It is an arithmetic number, because the mean of its divisors is an integer number (999306).

Almost surely, 2^12312235 is an apocalyptic number.

12312235 is a deficient number, since it is larger than the sum of its proper divisors (3676661).

12312235 is a wasteful number, since it uses less digits than its factorization.

12312235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942.

The product of its digits is 360, while the sum is 19.

The square root of 12312235 is about 3508.8794507649. The cubic root of 12312235 is about 230.9115369994.

Adding to 12312235 its reverse (53221321), we get a palindrome (65533556).

The spelling of 12312235 in words is "twelve million, three hundred twelve thousand, two hundred thirty-five".