12013642 has 8 divisors (see below), whose sum is σ = 18042336. Its totient is φ = 5999532.

The previous prime is 12013637. The next prime is 12013663. The reversal of 12013642 is 24631021.

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

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, 1278 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (2255292).

Almost surely, 2^12013642 is an apocalyptic number.

12013642 is a deficient number, since it is larger than the sum of its proper divisors (6028694).

12013642 is an equidigital number, since it uses as much as digits as its factorization.

12013642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7292.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12013642 is about 3466.0701089274. The cubic root of 12013642 is about 229.0295722760.

Adding to 12013642 its reverse (24631021), we get a palindrome (36644663).

The spelling of 12013642 in words is "twelve million, thirteen thousand, six hundred forty-two".