14681857 has 4 divisors (see below), whose sum is σ = 14699476. Its totient is φ = 14664240.

The previous prime is 14681839. The next prime is 14681869. The reversal of 14681857 is 75818641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75818641 = 2237 ⋅33893.

It can be written as a sum of positive squares in 2 ways, for example, as 13549761 + 1132096 = 3681^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 14681857 - 2¹¹ = 14679809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14681827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7494 + ... + 9247.

It is an arithmetic number, because the mean of its divisors is an integer number (3674869).

Almost surely, 2^14681857 is an apocalyptic number.

It is an amenable number.

14681857 is a deficient number, since it is larger than the sum of its proper divisors (17619).

14681857 is an equidigital number, since it uses as much as digits as its factorization.

14681857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17618.

The product of its digits is 53760, while the sum is 40.

The square root of 14681857 is about 3831.6911409977. The cubic root of 14681857 is about 244.8651597321.

The spelling of 14681857 in words is "fourteen million, six hundred eighty-one thousand, eight hundred fifty-seven".