207007213 has 6 divisors (see below), whose sum is σ = 240804366. Its totient is φ = 177434712.

The previous prime is 207007187. The next prime is 207007217. The reversal of 207007213 is 312700702.

It can be written as a sum of positive squares in only one way, i.e., 155426089 + 51581124 = 12467^2 + 7182^2 .

It is a de Polignac number, because none of the positive numbers 2^k-207007213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207007217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2112270 + ... + 2112367.

It is an arithmetic number, because the mean of its divisors is an integer number (40134061).

Almost surely, 2^207007213 is an apocalyptic number.

It is an amenable number.

207007213 is a deficient number, since it is larger than the sum of its proper divisors (33797153).

207007213 is an equidigital number, since it uses as much as digits as its factorization.

207007213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224651 (or 4224644 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 207007213 is about 14387.7452368326. The cubic root of 207007213 is about 591.5550408032. Note that the first 3 decimals are identical.

Adding to 207007213 its reverse (312700702), we get a palindrome (519707915).

The spelling of 207007213 in words is "two hundred seven million, seven thousand, two hundred thirteen".