18103142 has 8 divisors (see below), whose sum is σ = 27190632. Its totient is φ = 9039600.

The previous prime is 18103133. The next prime is 18103159. The reversal of 18103142 is 24130181.

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

It is a congruent 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, 3959 + ... + 7202.

It is an arithmetic number, because the mean of its divisors is an integer number (3398829).

Almost surely, 2^18103142 is an apocalyptic number.

18103142 is a deficient number, since it is larger than the sum of its proper divisors (9087490).

18103142 is a wasteful number, since it uses less digits than its factorization.

18103142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11974.

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

The square root of 18103142 is about 4254.7787251513. The cubic root of 18103142 is about 262.5737576560.

The spelling of 18103142 in words is "eighteen million, one hundred three thousand, one hundred forty-two".