14144005621 has 4 divisors (see below), whose sum is σ = 14255375872. Its totient is φ = 14032635372.

The previous prime is 14144005613. The next prime is 14144005639. The reversal of 14144005621 is 12650044141.

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: 12650044141 = 7 ⋅1807149163.

It is a cyclic number.

It is not a de Polignac number, because 14144005621 - 2³ = 14144005613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14144005621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14144005691) 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, 55684935 + ... + 55685188.

It is an arithmetic number, because the mean of its divisors is an integer number (3563843968).

Almost surely, 2^14144005621 is an apocalyptic number.

It is an amenable number.

14144005621 is a deficient number, since it is larger than the sum of its proper divisors (111370251).

14144005621 is a wasteful number, since it uses less digits than its factorization.

14144005621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111370250.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 14144005621 its reverse (12650044141), we get a palindrome (26794049762).

The spelling of 14144005621 in words is "fourteen billion, one hundred forty-four million, five thousand, six hundred twenty-one".