14412315521 has 4 divisors (see below), whose sum is σ = 14415627732. Its totient is φ = 14409003312.

The previous prime is 14412315439. The next prime is 14412315527. The reversal of 14412315521 is 12551321441.

It is a happy number.

14412315521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12551321441 = 3463 ⋅3624407.

It can be written as a sum of positive squares in 2 ways, for example, as 8057037121 + 6355278400 = 89761^2 + 79720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14412315521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14412315527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649570 + ... + 1658283.

It is an arithmetic number, because the mean of its divisors is an integer number (3603906933).

Almost surely, 2^14412315521 is an apocalyptic number.

It is an amenable number.

14412315521 is a deficient number, since it is larger than the sum of its proper divisors (3312211).

14412315521 is an equidigital number, since it uses as much as digits as its factorization.

14412315521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312210.

The product of its digits is 4800, while the sum is 29.

Adding to 14412315521 its reverse (12551321441), we get a palindrome (26963636962).

The spelling of 14412315521 in words is "fourteen billion, four hundred twelve million, three hundred fifteen thousand, five hundred twenty-one".