12140647 has 8 divisors (see below), whose sum is σ = 12767040. Its totient is φ = 11528160.

The previous prime is 12140629. The next prime is 12140651. The reversal of 12140647 is 74604121.

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

It is a cyclic number.

It is not a de Polignac number, because 12140647 - 2¹⁹ = 11616359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1663 + ... + 5200.

It is an arithmetic number, because the mean of its divisors is an integer number (1595880).

Almost surely, 2^12140647 is an apocalyptic number.

12140647 is a deficient number, since it is larger than the sum of its proper divisors (626393).

12140647 is an equidigital number, since it uses as much as digits as its factorization.

12140647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 12140647 is about 3484.3431231726. The cubic root of 12140647 is about 229.8338245162.

Adding to 12140647 its reverse (74604121), we get a palindrome (86744768).

The spelling of 12140647 in words is "twelve million, one hundred forty thousand, six hundred forty-seven".