215010205 has 16 divisors (see below), whose sum is σ = 269924400. Its totient is φ = 164200960.

The previous prime is 215010197. The next prime is 215010217. The reversal of 215010205 is 502010512.

It can be written as a sum of positive squares in 8 ways, for example, as 11148921 + 203861284 = 3339^2 + 14278^2 .

It is not a de Polignac number, because 215010205 - 2³ = 215010197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4575 + ... + 21235.

It is an arithmetic number, because the mean of its divisors is an integer number (16870275).

Almost surely, 2^215010205 is an apocalyptic number.

It is an amenable number.

215010205 is a deficient number, since it is larger than the sum of its proper divisors (54914195).

215010205 is a wasteful number, since it uses less digits than its factorization.

215010205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16784.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 215010205 is about 14663.2262820977. The cubic root of 215010205 is about 599.0821196904.

Adding to 215010205 its reverse (502010512), we get a palindrome (717020717).

The spelling of 215010205 in words is "two hundred fifteen million, ten thousand, two hundred five".