18113002 has 8 divisors (see below), whose sum is σ = 27195300. Its totient is φ = 9047904.

The previous prime is 18112999. The next prime is 18113009. The reversal of 18113002 is 20031181.

It can be written as a sum of positive squares in 2 ways, for example, as 12538681 + 5574321 = 3541^2 + 2361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18113009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227 + ... + 6142.

Almost surely, 2^18113002 is an apocalyptic number.

18113002 is a deficient number, since it is larger than the sum of its proper divisors (9082298).

18113002 is a wasteful number, since it uses less digits than its factorization.

18113002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 18113002 is about 4255.9372645752. The cubic root of 18113002 is about 262.6214198677.

Adding to 18113002 its reverse (20031181), we get a palindrome (38144183).

The spelling of 18113002 in words is "eighteen million, one hundred thirteen thousand, two".