12447146 has 8 divisors (see below), whose sum is σ = 18842340. Its totient is φ = 6166368.

The previous prime is 12447121. The next prime is 12447173. The reversal of 12447146 is 64174421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11868025 + 579121 = 3445^2 + 761^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28331 + ... + 28766.

Almost surely, 2^12447146 is an apocalyptic number.

12447146 is a deficient number, since it is larger than the sum of its proper divisors (6395194).

12447146 is a wasteful number, since it uses less digits than its factorization.

12447146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57208.

The product of its digits is 5376, while the sum is 29.

The square root of 12447146 is about 3528.0513034819. The cubic root of 12447146 is about 231.7518775156.

The spelling of 12447146 in words is "twelve million, four hundred forty-seven thousand, one hundred forty-six".