12140718 has 8 divisors (see below), whose sum is σ = 24281448. Its totient is φ = 4046904.

The previous prime is 12140693. The next prime is 12140731. The reversal of 12140718 is 81704121.

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

12140718 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011721 + ... + 1011732.

It is an arithmetic number, because the mean of its divisors is an integer number (3035181).

Almost surely, 2^12140718 is an apocalyptic number.

12140718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12140718 is a wasteful number, since it uses less digits than its factorization.

12140718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023458.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 12140718 is about 3484.3533115917. The cubic root of 12140718 is about 229.8342725475.

Adding to 12140718 its reverse (81704121), we get a palindrome (93844839).

The spelling of 12140718 in words is "twelve million, one hundred forty thousand, seven hundred eighteen".