14454051421 has 4 divisors (see below), whose sum is σ = 14481794844. Its totient is φ = 14426308000.

The previous prime is 14454051323. The next prime is 14454051427. The reversal of 14454051421 is 12415045441.

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 2874139321 + 11579912100 = 53611^2 + 107610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14454051421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14454051427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13870930 + ... + 13871971.

It is an arithmetic number, because the mean of its divisors is an integer number (3620448711).

Almost surely, 2^14454051421 is an apocalyptic number.

It is an amenable number.

14454051421 is a deficient number, since it is larger than the sum of its proper divisors (27743423).

14454051421 is an equidigital number, since it uses as much as digits as its factorization.

14454051421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27743422.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 14454051421 its reverse (12415045441), we get a palindrome (26869096862).

The spelling of 14454051421 in words is "fourteen billion, four hundred fifty-four million, fifty-one thousand, four hundred twenty-one".