214505521 has 8 divisors (see below), whose sum is σ = 224481600. Its totient is φ = 204583632.

The previous prime is 214505479. The next prime is 214505531. The reversal of 214505521 is 125505412.

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

It is a cyclic number.

It is not a de Polignac number, because 214505521 - 2⁹ = 214505009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214505531) 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, 5335 + ... + 21388.

It is an arithmetic number, because the mean of its divisors is an integer number (28060200).

Almost surely, 2^214505521 is an apocalyptic number.

It is an amenable number.

214505521 is a deficient number, since it is larger than the sum of its proper divisors (9976079).

214505521 is a wasteful number, since it uses less digits than its factorization.

214505521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27095.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 214505521 is about 14646.0069984962. The cubic root of 214505521 is about 598.6130194268.

The spelling of 214505521 in words is "two hundred fourteen million, five hundred five thousand, five hundred twenty-one".