14447521 has 12 divisors (see below), whose sum is σ = 16013200. Its totient is φ = 13024440.

The previous prime is 14447513. The next prime is 14447533. The reversal of 14447521 is 12574441.

It is not a de Polignac number, because 14447521 - 2³ = 14447513 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 14447521.

It is not an unprimeable number, because it can be changed into a prime (14447021) 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 11 ways as a sum of consecutive naturals, for example, 16390 + ... + 17248.

Almost surely, 2^14447521 is an apocalyptic number.

14447521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14447521 is a deficient number, since it is larger than the sum of its proper divisors (1565679).

14447521 is a wasteful number, since it uses less digits than its factorization.

14447521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 1009 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 14447521 is about 3800.9894764390. The cubic root of 14447521 is about 243.5554084900. Note that the first 3 decimals are identical.

Subtracting from 14447521 its reverse (12574441), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 14447521 in words is "fourteen million, four hundred forty-seven thousand, five hundred twenty-one".