12447134 has 8 divisors (see below), whose sum is σ = 21337968. Its totient is φ = 5334480.

The previous prime is 12447121. The next prime is 12447173. The reversal of 12447134 is 43174421.

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

It is a super-2 number, since 2×12447134² = 309862289627912, which contains 22 as substring.

It is a Curzon number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 444527 + ... + 444554.

It is an arithmetic number, because the mean of its divisors is an integer number (2667246).

Almost surely, 2^12447134 is an apocalyptic number.

12447134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12447134 is a deficient number, since it is larger than the sum of its proper divisors (8890834).

12447134 is an equidigital number, since it uses as much as digits as its factorization.

12447134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889090.

The product of its digits is 2688, while the sum is 26.

The square root of 12447134 is about 3528.0496028259. The cubic root of 12447134 is about 231.7518030401.

The spelling of 12447134 in words is "twelve million, four hundred forty-seven thousand, one hundred thirty-four".