18214158 has 8 divisors (see below), whose sum is σ = 36428328. Its totient is φ = 6071384.

The previous prime is 18214111. The next prime is 18214171. The reversal of 18214158 is 85141281.

It is a happy number.

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

18214158 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517841 + ... + 1517852.

It is an arithmetic number, because the mean of its divisors is an integer number (4553541).

Almost surely, 2^18214158 is an apocalyptic number.

18214158 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.

18214158 is a wasteful number, since it uses less digits than its factorization.

18214158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035698.

The product of its digits is 2560, while the sum is 30.

The square root of 18214158 is about 4267.8048221539. The cubic root of 18214158 is about 263.1094013957.

The spelling of 18214158 in words is "eighteen million, two hundred fourteen thousand, one hundred fifty-eight".