218700341 has 2 divisors, whose sum is σ = 218700342. Its totient is φ = 218700340.

The previous prime is 218700331. The next prime is 218700343. The reversal of 218700341 is 143007812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147719716 + 70980625 = 12154^2 + 8425^2 .

It is a cyclic number.

It is not a de Polignac number, because 218700341 - 2¹⁸ = 218438197 is a prime.

Together with 218700343, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 218700341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218700343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109350170 + 109350171.

It is an arithmetic number, because the mean of its divisors is an integer number (109350171).

Almost surely, 2^218700341 is an apocalyptic number.

It is an amenable number.

218700341 is a deficient number, since it is larger than the sum of its proper divisors (1).

218700341 is an equidigital number, since it uses as much as digits as its factorization.

218700341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 218700341 is about 14788.5205818567. The cubic root of 218700341 is about 602.4899682105.

The spelling of 218700341 in words is "two hundred eighteen million, seven hundred thousand, three hundred forty-one".