14215685 has 12 divisors (see below), whose sum is σ = 18751404. Its totient is φ = 10338240.

The previous prime is 14215681. The next prime is 14215693. The reversal of 14215685 is 58651241.

It can be written as a sum of positive squares in 2 ways, for example, as 8305924 + 5909761 = 2882^2 + 2431^2 .

It is not a de Polignac number, because 14215685 - 2² = 14215681 is a prime.

It is a super-3 number, since 3×14215685³ (a number of 22 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14215681) 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 11 ways as a sum of consecutive naturals, for example, 11144 + ... + 12353.

It is an arithmetic number, because the mean of its divisors is an integer number (1562617).

Almost surely, 2^14215685 is an apocalyptic number.

It is an amenable number.

14215685 is a deficient number, since it is larger than the sum of its proper divisors (4535719).

14215685 is a wasteful number, since it uses less digits than its factorization.

14215685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23524 (or 23513 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 14215685 is about 3770.3693453029. The cubic root of 14215685 is about 242.2456183934.

Subtracting 14215685 from its reverse (58651241), we obtain a square (44435556 = 6666²).

It can be divided in two parts, 142156 and 85, that added together give a palindrome (142241).

The spelling of 14215685 in words is "fourteen million, two hundred fifteen thousand, six hundred eighty-five".