14215645 has 8 divisors (see below), whose sum is σ = 17079480. Its totient is φ = 11358720.

The previous prime is 14215631. The next prime is 14215651. The reversal of 14215645 is 54651241.

It can be written as a sum of positive squares in 4 ways, for example, as 1747684 + 12467961 = 1322^2 + 3531^2 .

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

It is not a de Polignac number, because 14215645 - 2⁷ = 14215517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5761 + ... + 7849.

It is an arithmetic number, because the mean of its divisors is an integer number (2134935).

Almost surely, 2^14215645 is an apocalyptic number.

It is an amenable number.

14215645 is a deficient number, since it is larger than the sum of its proper divisors (2863835).

14215645 is a wasteful number, since it uses less digits than its factorization.

14215645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455.

The product of its digits is 4800, while the sum is 28.

The square root of 14215645 is about 3770.3640407791. The cubic root of 14215645 is about 242.2453911834.

Adding to 14215645 its reverse (54651241), we get a palindrome (68866886).

The spelling of 14215645 in words is "fourteen million, two hundred fifteen thousand, six hundred forty-five".