218011413 has 8 divisors (see below), whose sum is σ = 291462688. Its totient is φ = 144950544.

The previous prime is 218011403. The next prime is 218011447. The reversal of 218011413 is 314110812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 218011413 - 2¹³ = 218003221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 218011413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218011403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96295 + ... + 98532.

It is an arithmetic number, because the mean of its divisors is an integer number (36432836).

Almost surely, 2^218011413 is an apocalyptic number.

It is an amenable number.

218011413 is a deficient number, since it is larger than the sum of its proper divisors (73451275).

218011413 is a wasteful number, since it uses less digits than its factorization.

218011413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195203.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 218011413 is about 14765.2095481236. The cubic root of 218011413 is about 601.8566681571.

The spelling of 218011413 in words is "two hundred eighteen million, eleven thousand, four hundred thirteen".