209852513 has 8 divisors (see below), whose sum is σ = 231251328. Its totient is φ = 189204624.

The previous prime is 209852479. The next prime is 209852551. The reversal of 209852513 is 315258902.

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 209852513 - 2⁶ = 209852449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (209852813) 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, 187145 + ... + 188262.

It is an arithmetic number, because the mean of its divisors is an integer number (28906416).

Almost surely, 2^209852513 is an apocalyptic number.

It is an amenable number.

209852513 is a deficient number, since it is larger than the sum of its proper divisors (21398815).

209852513 is a wasteful number, since it uses less digits than its factorization.

209852513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375463.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 209852513 is about 14486.2870674304. The cubic root of 209852513 is about 594.2530117006.

The spelling of 209852513 in words is "two hundred nine million, eight hundred fifty-two thousand, five hundred thirteen".