218413005 has 16 divisors (see below), whose sum is σ = 352923264. Its totient is φ = 115332800.

The previous prime is 218412989. The next prime is 218413043. The reversal of 218413005 is 500314812.

It is not a de Polignac number, because 218413005 - 2⁴ = 218412989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70569 + ... + 73598.

It is an arithmetic number, because the mean of its divisors is an integer number (22057704).

Almost surely, 2^218413005 is an apocalyptic number.

It is an amenable number.

218413005 is a deficient number, since it is larger than the sum of its proper divisors (134510259).

218413005 is a wasteful number, since it uses less digits than its factorization.

218413005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144276.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 218413005 is about 14778.8025563643. The cubic root of 218413005 is about 602.2259952512.

Adding to 218413005 its reverse (500314812), we get a palindrome (718727817).

The spelling of 218413005 in words is "two hundred eighteen million, four hundred thirteen thousand, five".