18163134 has 24 divisors (see below), whose sum is σ = 42931512. Its totient is φ = 5503920.

The previous prime is 18163121. The next prime is 18163141. The reversal of 18163134 is 43136181.

It is a junction number, because it is equal to n+sod(n) for n = 18163098 and 18163107.

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 11 ways as a sum of consecutive naturals, for example, 45669 + ... + 46064.

It is an arithmetic number, because the mean of its divisors is an integer number (1788813).

Almost surely, 2^18163134 is an apocalyptic number.

18163134 is an abundant number, since it is smaller than the sum of its proper divisors (24768378).

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

18163134 is a wasteful number, since it uses less digits than its factorization.

18163134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91752 (or 91749 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 18163134 is about 4261.8228494390. The cubic root of 18163134 is about 262.8634855624.

It can be divided in two parts, 1816 and 3134, that added together give a triangular number (4950 = T₉₉).

The spelling of 18163134 in words is "eighteen million, one hundred sixty-three thousand, one hundred thirty-four".