218741147 has 2 divisors, whose sum is σ = 218741148. Its totient is φ = 218741146.

The previous prime is 218741101. The next prime is 218741179. The reversal of 218741147 is 741147812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 218741147 - 2⁸ = 218740891 is a prime.

It is not a weakly prime, because it can be changed into another prime (218741197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109370573 + 109370574.

It is an arithmetic number, because the mean of its divisors is an integer number (109370574).

Almost surely, 2^218741147 is an apocalyptic number.

218741147 is a deficient number, since it is larger than the sum of its proper divisors (1).

218741147 is an equidigital number, since it uses as much as digits as its factorization.

218741147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12544, while the sum is 35.

The square root of 218741147 is about 14789.9001686962. The cubic root of 218741147 is about 602.5274375572.

Adding to 218741147 its reverse (741147812), we get a palindrome (959888959).

It can be divided in two parts, 2187 and 41147, that added together give a palindrome (43334).

The spelling of 218741147 in words is "two hundred eighteen million, seven hundred forty-one thousand, one hundred forty-seven".