14213815 has 16 divisors (see below), whose sum is σ = 21265920. Its totient is φ = 8860320.

The previous prime is 14213813. The next prime is 14213821. The reversal of 14213815 is 51831241.

It is not a de Polignac number, because 14213815 - 2¹ = 14213813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14213815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14213813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18075 + ... + 18844.

It is an arithmetic number, because the mean of its divisors is an integer number (1329120).

Almost surely, 2^14213815 is an apocalyptic number.

14213815 is a deficient number, since it is larger than the sum of its proper divisors (7052105).

14213815 is a wasteful number, since it uses less digits than its factorization.

14213815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36942.

The product of its digits is 960, while the sum is 25.

The square root of 14213815 is about 3770.1213508321. The cubic root of 14213815 is about 242.2349958739.

The spelling of 14213815 in words is "fourteen million, two hundred thirteen thousand, eight hundred fifteen".