18130894 has 8 divisors (see below), whose sum is σ = 27217728. Its totient is φ = 9058320.

The previous prime is 18130867. The next prime is 18130909. The reversal of 18130894 is 49803181.

It is a happy number.

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 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, 579 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (3402216).

Almost surely, 2^18130894 is an apocalyptic number.

18130894 is a deficient number, since it is larger than the sum of its proper divisors (9086834).

18130894 is a wasteful number, since it uses less digits than its factorization.

18130894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 18130894 is about 4258.0387504108. The cubic root of 18130894 is about 262.7078637774.

The spelling of 18130894 in words is "eighteen million, one hundred thirty thousand, eight hundred ninety-four".