14540321521 has 8 divisors (see below), whose sum is σ = 16199662464. Its totient is φ = 12937229520.

The previous prime is 14540321491. The next prime is 14540321557. The reversal of 14540321521 is 12512304541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14540321521 - 2⁵ = 14540321489 is a prime.

It is a super-2 number, since 2×14540321521² (a number of 21 digits) contains 22 as substring.

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 14540321521.

It is not an unprimeable number, because it can be changed into a prime (14540325521) 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 7 ways as a sum of consecutive naturals, for example, 14061690 + ... + 14062723.

It is an arithmetic number, because the mean of its divisors is an integer number (2024957808).

Almost surely, 2^14540321521 is an apocalyptic number.

14540321521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14540321521 is a deficient number, since it is larger than the sum of its proper divisors (1659340943).

14540321521 is a wasteful number, since it uses less digits than its factorization.

14540321521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28124471.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 14540321521 in words is "fourteen billion, five hundred forty million, three hundred twenty-one thousand, five hundred twenty-one".