12444135 has 32 divisors (see below), whose sum is σ = 22146048. Its totient is φ = 5915520.

The previous prime is 12444097. The next prime is 12444137. The reversal of 12444135 is 53144421.

It is not a de Polignac number, because 12444135 - 2⁷ = 12444007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8034 + ... + 9456.

It is an arithmetic number, because the mean of its divisors is an integer number (692064).

Almost surely, 2^12444135 is an apocalyptic number.

12444135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12444135 is a deficient number, since it is larger than the sum of its proper divisors (9701913).

12444135 is a wasteful number, since it uses less digits than its factorization.

12444135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495.

The product of its digits is 1920, while the sum is 24.

The square root of 12444135 is about 3527.6245548527. The cubic root of 12444135 is about 231.7331888626.

Adding to 12444135 its reverse (53144421), we get a palindrome (65588556).

The spelling of 12444135 in words is "twelve million, four hundred forty-four thousand, one hundred thirty-five".