214520209 has 8 divisors (see below), whose sum is σ = 218566400. Its totient is φ = 210504096.

The previous prime is 214520147. The next prime is 214520233. The reversal of 214520209 is 902025412.

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 214520209 - 2⁷ = 214520081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214520239) 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, 7144 + ... + 21910.

It is an arithmetic number, because the mean of its divisors is an integer number (27320800).

Almost surely, 2^214520209 is an apocalyptic number.

It is an amenable number.

214520209 is a deficient number, since it is larger than the sum of its proper divisors (4046191).

214520209 is a wasteful number, since it uses less digits than its factorization.

214520209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15039.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 214520209 is about 14646.5084235117. The cubic root of 214520209 is about 598.6266822101.

The spelling of 214520209 in words is "two hundred fourteen million, five hundred twenty thousand, two hundred nine".