12136444 has 12 divisors (see below), whose sum is σ = 21813064. Its totient is φ = 5904144.

The previous prime is 12136441. The next prime is 12136457. The reversal of 12136444 is 44463121.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12136441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40854 + ... + 41149.

Almost surely, 2^12136444 is an apocalyptic number.

It is an amenable number.

12136444 is a deficient number, since it is larger than the sum of its proper divisors (9676620).

12136444 is a wasteful number, since it uses less digits than its factorization.

12136444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82044 (or 82042 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 12136444 is about 3483.7399443701. The cubic root of 12136444 is about 229.8072992122.

Adding to 12136444 its reverse (44463121), we get a palindrome (56599565).

The spelling of 12136444 in words is "twelve million, one hundred thirty-six thousand, four hundred forty-four".