14691321 has 8 divisors (see below), whose sum is σ = 21764960. Its totient is φ = 9794196.

The previous prime is 14691317. The next prime is 14691343. The reversal of 14691321 is 12319641.

It is not a de Polignac number, because 14691321 - 2² = 14691317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 544123 = 14691321 / (1 + 4 + 6 + 9 + 1 + 3 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14691361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272035 + ... + 272088.

It is an arithmetic number, because the mean of its divisors is an integer number (2720620).

Almost surely, 2^14691321 is an apocalyptic number.

It is an amenable number.

14691321 is a deficient number, since it is larger than the sum of its proper divisors (7073639).

14691321 is an equidigital number, since it uses as much as digits as its factorization.

14691321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544132 (or 544126 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 14691321 is about 3832.9259058844. The cubic root of 14691321 is about 244.9177622086.

The spelling of 14691321 in words is "fourteen million, six hundred ninety-one thousand, three hundred twenty-one".