218852141 has 2 divisors, whose sum is σ = 218852142. Its totient is φ = 218852140.

The previous prime is 218852111. The next prime is 218852147. The reversal of 218852141 is 141258812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216384100 + 2468041 = 14710^2 + 1571^2 .

It is a cyclic number.

It is not a de Polignac number, because 218852141 - 2¹⁰ = 218851117 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 218852098 and 218852107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218852147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109426070 + 109426071.

It is an arithmetic number, because the mean of its divisors is an integer number (109426071).

Almost surely, 2^218852141 is an apocalyptic number.

It is an amenable number.

218852141 is a deficient number, since it is larger than the sum of its proper divisors (1).

218852141 is an equidigital number, since it uses as much as digits as its factorization.

218852141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 32.

The square root of 218852141 is about 14793.6520507953. The cubic root of 218852141 is about 602.6293321526.

The spelling of 218852141 in words is "two hundred eighteen million, eight hundred fifty-two thousand, one hundred forty-one".