18113302 has 4 divisors (see below), whose sum is σ = 27169956. Its totient is φ = 9056650.

The previous prime is 18113299. The next prime is 18113317. The reversal of 18113302 is 20331181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20331181 = 13 ⋅1563937.

It is a self number, because there is not a number n which added to its sum of digits gives 18113302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4528324 + ... + 4528327.

It is an arithmetic number, because the mean of its divisors is an integer number (6792489).

Almost surely, 2^18113302 is an apocalyptic number.

18113302 is a deficient number, since it is larger than the sum of its proper divisors (9056654).

18113302 is an equidigital number, since it uses as much as digits as its factorization.

18113302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056653.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 18113302 is about 4255.9725093097. The cubic root of 18113302 is about 262.6228697652.

Adding to 18113302 its reverse (20331181), we get a palindrome (38444483).

The spelling of 18113302 in words is "eighteen million, one hundred thirteen thousand, three hundred two".