18121314 has 8 divisors (see below), whose sum is σ = 36242640. Its totient is φ = 6040436.

The previous prime is 18121297. The next prime is 18121351. The reversal of 18121314 is 41312181.

It is a happy number.

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

18121314 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1510104 + ... + 1510115.

It is an arithmetic number, because the mean of its divisors is an integer number (4530330).

Almost surely, 2^18121314 is an apocalyptic number.

18121314 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18121314 is a wasteful number, since it uses less digits than its factorization.

18121314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020224.

The product of its digits is 192, while the sum is 21.

The square root of 18121314 is about 4256.9136707244. The cubic root of 18121314 is about 262.6615857738.

Adding to 18121314 its reverse (41312181), we get a palindrome (59433495).

The spelling of 18121314 in words is "eighteen million, one hundred twenty-one thousand, three hundred fourteen".