14013414521 has 4 divisors (see below), whose sum is σ = 14392155492. Its totient is φ = 13634673552.

The previous prime is 14013414511. The next prime is 14013414529. The reversal of 14013414521 is 12541431041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12541431041 = 43 ⋅291661187.

It can be written as a sum of positive squares in 2 ways, for example, as 13273574521 + 739840000 = 115211^2 + 27200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14013414521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14013414529) 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, 189370430 + ... + 189370503.

It is an arithmetic number, because the mean of its divisors is an integer number (3598038873).

Almost surely, 2^14013414521 is an apocalyptic number.

It is an amenable number.

14013414521 is a deficient number, since it is larger than the sum of its proper divisors (378740971).

14013414521 is an equidigital number, since it uses as much as digits as its factorization.

14013414521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378740970.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 14013414521 its reverse (12541431041), we get a palindrome (26554845562).

The spelling of 14013414521 in words is "fourteen billion, thirteen million, four hundred fourteen thousand, five hundred twenty-one".