218134 has 8 divisors (see below), whose sum is σ = 373968. Its totient is φ = 93480.

The previous prime is 218131. The next prime is 218137. The reversal of 218134 is 431812.

It is an interprime number because it is at equal distance from previous prime (218131) and next prime (218137).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7777 + ... + 7804.

It is an arithmetic number, because the mean of its divisors is an integer number (46746).

2²¹⁸¹³⁴ is an apocalyptic number.

218134 is a deficient number, since it is larger than the sum of its proper divisors (155834).

218134 is a wasteful number, since it uses less digits than its factorization.

218134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15590.

The product of its digits is 192, while the sum is 19.

The square root of 218134 is about 467.0481773864. The cubic root of 218134 is about 60.1969454269.

Adding to 218134 its reverse (431812), we get a palindrome (649946).

The spelling of 218134 in words is "two hundred eighteen thousand, one hundred thirty-four".