18135004 has 12 divisors (see below), whose sum is σ = 32045104. Its totient is φ = 8979264.

The previous prime is 18134999. The next prime is 18135037. The reversal of 18135004 is 40053181.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

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, 21597 + ... + 22420.

Almost surely, 2^18135004 is an apocalyptic number.

It is an amenable number.

18135004 is a deficient number, since it is larger than the sum of its proper divisors (13910100).

18135004 is a wasteful number, since it uses less digits than its factorization.

18135004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44124 (or 44122 counting only the distinct ones).

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

The square root of 18135004 is about 4258.5213396201. The cubic root of 18135004 is about 262.7277129134.

Adding to 18135004 its reverse (40053181), we get a palindrome (58188185).

The spelling of 18135004 in words is "eighteen million, one hundred thirty-five thousand, four".