14142857 has 4 divisors (see below), whose sum is σ = 14153856. Its totient is φ = 14131860.

The previous prime is 14142853. The next prime is 14142871. The reversal of 14142857 is 75824141.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14142857 - 2² = 14142853 is a prime.

It is a Duffinian number.

14142857 is a modest number, since divided by 142857 gives 14 as remainder.

It is not an unprimeable number, because it can be changed into a prime (14142853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3269 + ... + 6242.

It is an arithmetic number, because the mean of its divisors is an integer number (3538464).

Almost surely, 2^14142857 is an apocalyptic number.

It is an amenable number.

14142857 is a deficient number, since it is larger than the sum of its proper divisors (10999).

14142857 is an equidigital number, since it uses as much as digits as its factorization.

14142857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10998.

The product of its digits is 8960, while the sum is 32.

The square root of 14142857 is about 3760.6990041746. The cubic root of 14142857 is about 241.8312292292.

Adding to 14142857 its reverse (75824141), we get a palindrome (89966998).

The spelling of 14142857 in words is "fourteen million, one hundred forty-two thousand, eight hundred fifty-seven".