14131221 has 8 divisors (see below), whose sum is σ = 20291040. Its totient is φ = 8696112.

The previous prime is 14131147. The next prime is 14131237. The reversal of 14131221 is 12213141.

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

It is not a de Polignac number, because 14131221 - 2¹⁹ = 13606933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14131261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181131 + ... + 181208.

It is an arithmetic number, because the mean of its divisors is an integer number (2536380).

Almost surely, 2^14131221 is an apocalyptic number.

It is an amenable number.

14131221 is a deficient number, since it is larger than the sum of its proper divisors (6159819).

14131221 is a wasteful number, since it uses less digits than its factorization.

14131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362355.

The product of its digits is 48, while the sum is 15.

The square root of 14131221 is about 3759.1516330151. The cubic root of 14131221 is about 241.7648890204.

Adding to 14131221 its reverse (12213141), we get a palindrome (26344362).

The spelling of 14131221 in words is "fourteen million, one hundred thirty-one thousand, two hundred twenty-one".