14102355521 has 4 divisors (see below), whose sum is σ = 14112365700. Its totient is φ = 14092345344.

The previous prime is 14102355497. The next prime is 14102355529. The reversal of 14102355521 is 12555320141.

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 812877121 + 13289478400 = 28511^2 + 115280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14102355521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14102355529) 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, 5002976 + ... + 5005793.

It is an arithmetic number, because the mean of its divisors is an integer number (3528091425).

Almost surely, 2^14102355521 is an apocalyptic number.

It is an amenable number.

14102355521 is a deficient number, since it is larger than the sum of its proper divisors (10010179).

14102355521 is a wasteful number, since it uses less digits than its factorization.

14102355521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010178.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 14102355521 its reverse (12555320141), we get a palindrome (26657675662).

The spelling of 14102355521 in words is "fourteen billion, one hundred two million, three hundred fifty-five thousand, five hundred twenty-one".