213206341 has 6 divisors (see below), whose sum is σ = 218281830. Its totient is φ = 208246248.

The previous prime is 213206339. The next prime is 213206351. The reversal of 213206341 is 143602312.

It can be written as a sum of positive squares in only one way, i.e., 142898116 + 70308225 = 11954^2 + 8385^2 .

It is not a de Polignac number, because 213206341 - 2¹ = 213206339 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 (213206351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55806 + ... + 59503.

It is an arithmetic number, because the mean of its divisors is an integer number (36380305).

Almost surely, 2^213206341 is an apocalyptic number.

It is an amenable number.

213206341 is a deficient number, since it is larger than the sum of its proper divisors (5075489).

213206341 is an equidigital number, since it uses as much as digits as its factorization.

213206341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115395 (or 115352 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 213206341 is about 14601.5869343027. The cubic root of 213206341 is about 597.4020459977.

Adding to 213206341 its reverse (143602312), we get a palindrome (356808653).

The spelling of 213206341 in words is "two hundred thirteen million, two hundred six thousand, three hundred forty-one".