213620207 has 2 divisors, whose sum is σ = 213620208. Its totient is φ = 213620206.

The previous prime is 213620201. The next prime is 213620261. The reversal of 213620207 is 702026312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213620207 - 2⁴ = 213620191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213620201) by changing a digit.

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, 106810103 + 106810104.

It is an arithmetic number, because the mean of its divisors is an integer number (106810104).

Almost surely, 2^213620207 is an apocalyptic number.

213620207 is a deficient number, since it is larger than the sum of its proper divisors (1).

213620207 is an equidigital number, since it uses as much as digits as its factorization.

213620207 is an odious number, because the sum of its binary digits is odd.

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

The square root of 213620207 is about 14615.7520162323. The cubic root of 213620207 is about 597.7883456213.

Adding to 213620207 its reverse (702026312), we get a palindrome (915646519).

The spelling of 213620207 in words is "two hundred thirteen million, six hundred twenty thousand, two hundred seven".