18005134 has 8 divisors (see below), whose sum is σ = 30865968. Its totient is φ = 7716480.

The previous prime is 18005129. The next prime is 18005147. The reversal of 18005134 is 43150081.

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, 643027 + ... + 643054.

It is an arithmetic number, because the mean of its divisors is an integer number (3858246).

Almost surely, 2^18005134 is an apocalyptic number.

18005134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18005134 is a deficient number, since it is larger than the sum of its proper divisors (12860834).

18005134 is a wasteful number, since it uses less digits than its factorization.

18005134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286090.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 18005134 is about 4243.2456916846. The cubic root of 18005134 is about 262.0990535085.

The spelling of 18005134 in words is "eighteen million, five thousand, one hundred thirty-four".