201818214 has 24 divisors (see below), whose sum is σ = 470909712. Its totient is φ = 62097840.

The previous prime is 201818213. The next prime is 201818233. The reversal of 201818214 is 412818102.

201818214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201818213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431002 + ... + 431469.

It is an arithmetic number, because the mean of its divisors is an integer number (19621238).

Almost surely, 2^201818214 is an apocalyptic number.

201818214 is an abundant number, since it is smaller than the sum of its proper divisors (269091498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201818214 is a wasteful number, since it uses less digits than its factorization.

201818214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862492 (or 862489 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 201818214 is about 14206.2737549295. The cubic root of 201818214 is about 586.5703676447.

The spelling of 201818214 in words is "two hundred one million, eight hundred eighteen thousand, two hundred fourteen".