207143213 has 2 divisors, whose sum is σ = 207143214. Its totient is φ = 207143212.

The previous prime is 207143207. The next prime is 207143231. The reversal of 207143213 is 312341702.

Together with next prime (207143231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119290084 + 87853129 = 10922^2 + 9373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207143213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (207143243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103571606 + 103571607.

It is an arithmetic number, because the mean of its divisors is an integer number (103571607).

Almost surely, 2^207143213 is an apocalyptic number.

It is an amenable number.

207143213 is a deficient number, since it is larger than the sum of its proper divisors (1).

207143213 is an equidigital number, since it uses as much as digits as its factorization.

207143213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 207143213 is about 14392.4707051986. The cubic root of 207143213 is about 591.6845594360.

Adding to 207143213 its reverse (312341702), we get a palindrome (519484915).

The spelling of 207143213 in words is "two hundred seven million, one hundred forty-three thousand, two hundred thirteen".