218136014 has 8 divisors (see below), whose sum is σ = 327268488. Its totient is φ = 109046520.

The previous prime is 218136013. The next prime is 218136019. The reversal of 218136014 is 410631812.

218136014 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218136013) 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, 9809 + ... + 23075.

It is an arithmetic number, because the mean of its divisors is an integer number (40908561).

Almost surely, 2^218136014 is an apocalyptic number.

218136014 is a deficient number, since it is larger than the sum of its proper divisors (109132474).

218136014 is a wasteful number, since it uses less digits than its factorization.

218136014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21490.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 218136014 is about 14769.4283572520. The cubic root of 218136014 is about 601.9713068961.

Adding to 218136014 its reverse (410631812), we get a palindrome (628767826).

The spelling of 218136014 in words is "two hundred eighteen million, one hundred thirty-six thousand, fourteen".