14194501421 has 4 divisors (see below), whose sum is σ = 14195469792. Its totient is φ = 14193533052.

The previous prime is 14194501417. The next prime is 14194501423. The reversal of 14194501421 is 12410549141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12410549141 = 109 ⋅113858249.

It is a cyclic number.

It is not a de Polignac number, because 14194501421 - 2² = 14194501417 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 (14194501423) 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, 461855 + ... + 491628.

It is an arithmetic number, because the mean of its divisors is an integer number (3548867448).

Almost surely, 2^14194501421 is an apocalyptic number.

It is an amenable number.

14194501421 is a deficient number, since it is larger than the sum of its proper divisors (968371).

14194501421 is an equidigital number, since it uses as much as digits as its factorization.

14194501421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968370.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 14194501421 in words is "fourteen billion, one hundred ninety-four million, five hundred one thousand, four hundred twenty-one".