18568134 has 48 divisors (see below), whose sum is σ = 43959552. Its totient is φ = 5629824.

The previous prime is 18568129. The next prime is 18568139. The reversal of 18568134 is 43186581.

It is an interprime number because it is at equal distance from previous prime (18568129) and next prime (18568139).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18568139) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 16539 + ... + 17625.

It is an arithmetic number, because the mean of its divisors is an integer number (915824).

Almost surely, 2^18568134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18568134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21979776).

18568134 is an abundant number, since it is smaller than the sum of its proper divisors (25391418).

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

18568134 is a wasteful number, since it uses less digits than its factorization.

18568134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1178 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 18568134 is about 4309.0757709746. The cubic root of 18568134 is about 264.8029102950.

The spelling of 18568134 in words is "eighteen million, five hundred sixty-eight thousand, one hundred thirty-four".