12136385 has 16 divisors (see below), whose sum is σ = 15645312. Its totient is φ = 9004800.

The previous prime is 12136373. The next prime is 12136393. The reversal of 12136385 is 58363121.

It is not a de Polignac number, because 12136385 - 2⁶ = 12136321 is a prime.

It is a Duffinian number.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 5030 + ... + 7040.

It is an arithmetic number, because the mean of its divisors is an integer number (977832).

Almost surely, 2^12136385 is an apocalyptic number.

It is an amenable number.

12136385 is a deficient number, since it is larger than the sum of its proper divisors (3508927).

12136385 is a wasteful number, since it uses less digits than its factorization.

12136385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its digits is 4320, while the sum is 29.

The square root of 12136385 is about 3483.7314764488. The cubic root of 12136385 is about 229.8069268172.

It can be divided in two parts, 12136 and 385, that added together give a palindrome (12521).

The spelling of 12136385 in words is "twelve million, one hundred thirty-six thousand, three hundred eighty-five".