14418521 has 4 divisors (see below), whose sum is σ = 15527652. Its totient is φ = 13309392.

The previous prime is 14418487. The next prime is 14418541. The reversal of 14418521 is 12581441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6375625 + 8042896 = 2525^2 + 2836^2 .

It is a cyclic number.

It is not a de Polignac number, because 14418521 - 2¹⁸ = 14156377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14418541) 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, 554546 + ... + 554571.

It is an arithmetic number, because the mean of its divisors is an integer number (3881913).

Almost surely, 2^14418521 is an apocalyptic number.

It is an amenable number.

14418521 is a deficient number, since it is larger than the sum of its proper divisors (1109131).

14418521 is a wasteful number, since it uses less digits than its factorization.

14418521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109130.

The product of its digits is 1280, while the sum is 26.

The square root of 14418521 is about 3797.1727640443. The cubic root of 14418521 is about 243.3923392694.

Adding to 14418521 its reverse (12581441), we get a palindrome (26999962).

The spelling of 14418521 in words is "fourteen million, four hundred eighteen thousand, five hundred twenty-one".