218943076141 has 2 divisors, whose sum is σ = 218943076142. Its totient is φ = 218943076140.

The previous prime is 218943076139. The next prime is 218943076151. The reversal of 218943076141 is 141670349812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164879850916 + 54063225225 = 406054^2 + 232515^2 .

It is a cyclic number.

It is not a de Polignac number, because 218943076141 - 2¹ = 218943076139 is a prime.

Together with 218943076139, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 218943076091 and 218943076100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218943076151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109471538070 + 109471538071.

It is an arithmetic number, because the mean of its divisors is an integer number (109471538071).

Almost surely, 2^218943076141 is an apocalyptic number.

It is an amenable number.

218943076141 is a deficient number, since it is larger than the sum of its proper divisors (1).

218943076141 is an equidigital number, since it uses as much as digits as its factorization.

218943076141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 218943076141 in words is "two hundred eighteen billion, nine hundred forty-three million, seventy-six thousand, one hundred forty-one".