218379159 has 20 divisors (see below), whose sum is σ = 336747840. Its totient is φ = 140888160.

The previous prime is 218379151. The next prime is 218379199. The reversal of 218379159 is 951973812.

It is not a de Polignac number, because 218379159 - 2³ = 218379151 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218379151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 40974 + ... + 45995.

It is an arithmetic number, because the mean of its divisors is an integer number (16837392).

Almost surely, 2^218379159 is an apocalyptic number.

218379159 is a deficient number, since it is larger than the sum of its proper divisors (118368681).

218379159 is an equidigital number, since it uses as much as digits as its factorization.

218379159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87012 (or 87003 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 218379159 is about 14777.6574259928. The cubic root of 218379159 is about 602.1948860017.

The spelling of 218379159 in words is "two hundred eighteen million, three hundred seventy-nine thousand, one hundred fifty-nine".