216210513 has 8 divisors (see below), whose sum is σ = 290975328. Its totient is φ = 142793024.

The previous prime is 216210503. The next prime is 216210521. The reversal of 216210513 is 315012612.

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 216210513 - 2¹⁰ = 216209489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216210513.

It is not an unprimeable number, because it can be changed into a prime (216210503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336456 + ... + 337097.

It is an arithmetic number, because the mean of its divisors is an integer number (36371916).

Almost surely, 2^216210513 is an apocalyptic number.

It is an amenable number.

216210513 is a deficient number, since it is larger than the sum of its proper divisors (74764815).

216210513 is a wasteful number, since it uses less digits than its factorization.

216210513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673663.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 216210513 is about 14704.0985102794. The cubic root of 216210513 is about 600.1948561561.

The spelling of 216210513 in words is "two hundred sixteen million, two hundred ten thousand, five hundred thirteen".