218119147 has 4 divisors (see below), whose sum is σ = 220367896. Its totient is φ = 215870400.

The previous prime is 218119123. The next prime is 218119157. The reversal of 218119147 is 741911812.

218119147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218119147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218119117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124229 + ... + 1124422.

It is an arithmetic number, because the mean of its divisors is an integer number (55091974).

Almost surely, 2^218119147 is an apocalyptic number.

218119147 is a deficient number, since it is larger than the sum of its proper divisors (2248749).

218119147 is an equidigital number, since it uses as much as digits as its factorization.

218119147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248748.

The product of its digits is 4032, while the sum is 34.

The square root of 218119147 is about 14768.8573356235. The cubic root of 218119147 is about 601.9557910236.

The spelling of 218119147 in words is "two hundred eighteen million, one hundred nineteen thousand, one hundred forty-seven".