216010 has 8 divisors (see below), whose sum is σ = 388836. Its totient is φ = 86400.

The previous prime is 215983. The next prime is 216023. The reversal of 216010 is 10612.

It can be written as a sum of positive squares in 2 ways, for example, as 210681 + 5329 = 459^2 + 73^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 21601 = 216010 / (2 + 1 + 6 + 0 + 1 + 0).

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10791 + ... + 10810.

216010 is a Friedman number, since it can be written as 60^(2+1)+10, using all its digits and the basic arithmetic operations.

2²¹⁶⁰¹⁰ is an apocalyptic number.

216010 is a deficient number, since it is larger than the sum of its proper divisors (172826).

216010 is a wasteful number, since it uses less digits than its factorization.

216010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21608.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 216010 is about 464.7687597074. The cubic root of 216010 is about 60.0009259116. Note that the first 3 decimals are identical.

Subtracting from 216010 its sum of digits (10), we obtain a cube (216000 = 60³).

Adding to 216010 its reverse (10612), we get a palindrome (226622).

The spelling of 216010 in words is "two hundred sixteen thousand, ten".