14135520521 has 8 divisors (see below), whose sum is σ = 14172961920. Its totient is φ = 14098127472.

The previous prime is 14135520463. The next prime is 14135520571. The reversal of 14135520521 is 12502553141.

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 14135520521 - 2²² = 14131326217 is a prime.

It is a super-2 number, since 2×14135520521² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14135520571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615776 + ... + 638318.

It is an arithmetic number, because the mean of its divisors is an integer number (1771620240).

Almost surely, 2^14135520521 is an apocalyptic number.

It is an amenable number.

14135520521 is a deficient number, since it is larger than the sum of its proper divisors (37441399).

14135520521 is a wasteful number, since it uses less digits than its factorization.

14135520521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24175.

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

The spelling of 14135520521 in words is "fourteen billion, one hundred thirty-five million, five hundred twenty thousand, five hundred twenty-one".