12136443 has 8 divisors (see below), whose sum is σ = 17653056. Its totient is φ = 7355400.

The previous prime is 12136441. The next prime is 12136457. The reversal of 12136443 is 34463121.

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

It is not a de Polignac number, because 12136443 - 2¹ = 12136441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12136441) 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, 183853 + ... + 183918.

It is an arithmetic number, because the mean of its divisors is an integer number (2206632).

Almost surely, 2^12136443 is an apocalyptic number.

12136443 is a deficient number, since it is larger than the sum of its proper divisors (5516613).

12136443 is a wasteful number, since it uses less digits than its factorization.

12136443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367785.

The product of its digits is 1728, while the sum is 24.

The square root of 12136443 is about 3483.7398008462. The cubic root of 12136443 is about 229.8072929004.

Adding to 12136443 its reverse (34463121), we get a palindrome (46599564).

The spelling of 12136443 in words is "twelve million, one hundred thirty-six thousand, four hundred forty-three".