18013214 has 8 divisors (see below), whose sum is σ = 27083808. Its totient is φ = 8985280.

The previous prime is 18013213. The next prime is 18013253. The reversal of 18013214 is 41231081.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18013211) 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, 9587 + ... + 11310.

It is an arithmetic number, because the mean of its divisors is an integer number (3385476).

Almost surely, 2^18013214 is an apocalyptic number.

18013214 is a deficient number, since it is larger than the sum of its proper divisors (9070594).

18013214 is a wasteful number, since it uses less digits than its factorization.

18013214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21330.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 18013214 is about 4244.1976862536. The cubic root of 18013214 is about 262.1382542469.

Adding to 18013214 its reverse (41231081), we get a palindrome (59244295).

The spelling of 18013214 in words is "eighteen million, thirteen thousand, two hundred fourteen".