13983532221 has 8 divisors (see below), whose sum is σ = 18647909920. Its totient is φ = 9320754672.

The previous prime is 13983532207. The next prime is 13983532237. The reversal of 13983532221 is 12223538931.

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

It is not a de Polignac number, because 13983532221 - 2⁷ = 13983532093 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 13983532221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13983532271) 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, 379495 + ... + 414708.

It is an arithmetic number, because the mean of its divisors is an integer number (2330988740).

Almost surely, 2^13983532221 is an apocalyptic number.

It is an amenable number.

13983532221 is a deficient number, since it is larger than the sum of its proper divisors (4664377699).

13983532221 is an equidigital number, since it uses as much as digits as its factorization.

13983532221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800075.

The product of its digits is 77760, while the sum is 39.

The spelling of 13983532221 in words is "thirteen billion, nine hundred eighty-three million, five hundred thirty-two thousand, two hundred twenty-one".