14505421 has 12 divisors (see below), whose sum is σ = 16939260. Its totient is φ = 12384960.

The previous prime is 14505409. The next prime is 14505451. The reversal of 14505421 is 12450541.

It can be written as a sum of positive squares in 2 ways, for example, as 1102500 + 13402921 = 1050^2 + 3661^2 .

It is not a de Polignac number, because 14505421 - 2⁵ = 14505389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14505392 and 14505401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14505401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18681 + ... + 19441.

It is an arithmetic number, because the mean of its divisors is an integer number (1411605).

Almost surely, 2^14505421 is an apocalyptic number.

It is an amenable number.

14505421 is a deficient number, since it is larger than the sum of its proper divisors (2433839).

14505421 is an equidigital number, since it uses as much as digits as its factorization.

14505421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 14505421 is about 3808.5982985870. The cubic root of 14505421 is about 243.8803330161.

Adding to 14505421 its reverse (12450541), we get a palindrome (26955962).

The spelling of 14505421 in words is "fourteen million, five hundred five thousand, four hundred twenty-one".