14282521 has 8 divisors (see below), whose sum is σ = 15609888. Its totient is φ = 12960000.

The previous prime is 14282519. The next prime is 14282531. The reversal of 14282521 is 12528241.

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

It is a 4-Lehmer number, since φ(14282521) divides (14282521-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 14282521 - 2¹ = 14282519 is a prime.

It is a super-2 number, since 2×14282521² = 407980812230882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14282531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8121 + ... + 9721.

It is an arithmetic number, because the mean of its divisors is an integer number (1951236).

Almost surely, 2^14282521 is an apocalyptic number.

14282521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14282521 is a deficient number, since it is larger than the sum of its proper divisors (1327367).

14282521 is a wasteful number, since it uses less digits than its factorization.

14282521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423.

The product of its digits is 1280, while the sum is 25.

The square root of 14282521 is about 3779.2222744898. Note that the first 4 decimals coincide. The cubic root of 14282521 is about 242.6246696617.

The spelling of 14282521 in words is "fourteen million, two hundred eighty-two thousand, five hundred twenty-one".