201146216 has 8 divisors (see below), whose sum is σ = 377149170. Its totient is φ = 100573104.

The previous prime is 201146191. The next prime is 201146221. The reversal of 201146216 is 612641102.

It can be written as a sum of positive squares in only one way, i.e., 124233316 + 76912900 = 11146^2 + 8770^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×201146216² = 80919600422237312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201146191 and 201146200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12571631 + ... + 12571646.

Almost surely, 2^201146216 is an apocalyptic number.

It is an amenable number.

201146216 is a deficient number, since it is larger than the sum of its proper divisors (176002954).

201146216 is a wasteful number, since it uses less digits than its factorization.

201146216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25143283 (or 25143279 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 201146216 is about 14182.6025820369. The cubic root of 201146216 is about 585.9186054911.

Adding to 201146216 its reverse (612641102), we get a palindrome (813787318).

The spelling of 201146216 in words is "two hundred one million, one hundred forty-six thousand, two hundred sixteen".