218252361 has 8 divisors (see below), whose sum is σ = 291110464. Its totient is φ = 145447920.

The previous prime is 218252323. The next prime is 218252383. The reversal of 218252361 is 163252812.

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

It is not a de Polignac number, because 218252361 - 2¹⁰ = 218251337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218252561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2701 + ... + 21066.

It is an arithmetic number, because the mean of its divisors is an integer number (36388808).

Almost surely, 2^218252361 is an apocalyptic number.

It is an amenable number.

218252361 is a deficient number, since it is larger than the sum of its proper divisors (72858103).

218252361 is a wasteful number, since it uses less digits than its factorization.

218252361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26831.

The product of its digits is 5760, while the sum is 30.

The square root of 218252361 is about 14773.3666102212. The cubic root of 218252361 is about 602.0783121633.

The spelling of 218252361 in words is "two hundred eighteen million, two hundred fifty-two thousand, three hundred sixty-one".