12013706 has 8 divisors (see below), whose sum is σ = 18316164. Its totient is φ = 5908320.

The previous prime is 12013699. The next prime is 12013733. The reversal of 12013706 is 60731021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8755681 + 3258025 = 2959^2 + 1805^2 .

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49115 + ... + 49358.

Almost surely, 2^12013706 is an apocalyptic number.

12013706 is a deficient number, since it is larger than the sum of its proper divisors (6302458).

12013706 is an equidigital number, since it uses as much as digits as its factorization.

12013706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98536.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 12013706 is about 3466.0793412731. The cubic root of 12013706 is about 229.0299789766.

Adding to 12013706 its reverse (60731021), we get a palindrome (72744727).

The spelling of 12013706 in words is "twelve million, thirteen thousand, seven hundred six".