218049 has 8 divisors (see below), whose sum is σ = 313152. Its totient is φ = 134160.

The previous prime is 218047. The next prime is 218069. The reversal of 218049 is 940812.

218049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 218049 - 2¹ = 218047 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 218049.

It is not an unprimeable number, because it can be changed into a prime (218047) 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, 2757 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (39144).

2²¹⁸⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

218049 is a deficient number, since it is larger than the sum of its proper divisors (95103).

218049 is a wasteful number, since it uses less digits than its factorization.

218049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 218049 is about 466.9571714836. The cubic root of 218049 is about 60.1891254552.

The spelling of 218049 in words is "two hundred eighteen thousand, forty-nine".