14140709 has 4 divisors (see below), whose sum is σ = 15426240. Its totient is φ = 12855180.

The previous prime is 14140691. The next prime is 14140717. The reversal of 14140709 is 90704141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14140709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14140109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642749 + ... + 642770.

It is an arithmetic number, because the mean of its divisors is an integer number (3856560).

Almost surely, 2^14140709 is an apocalyptic number.

It is an amenable number.

14140709 is a deficient number, since it is larger than the sum of its proper divisors (1285531).

14140709 is a wasteful number, since it uses less digits than its factorization.

14140709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285530.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 14140709 is about 3760.4134081242. The cubic root of 14140709 is about 241.8189855979.

The spelling of 14140709 in words is "fourteen million, one hundred forty thousand, seven hundred nine".