18113135 has 8 divisors (see below), whose sum is σ = 21771936. Its totient is φ = 14466400.

The previous prime is 18113131. The next prime is 18113141. The reversal of 18113135 is 53131181.

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

It is not a de Polignac number, because 18113135 - 2² = 18113131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18113135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18113131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710 + ... + 6060.

It is an arithmetic number, because the mean of its divisors is an integer number (2721492).

Almost surely, 2^18113135 is an apocalyptic number.

18113135 is a deficient number, since it is larger than the sum of its proper divisors (3658801).

18113135 is an equidigital number, since it uses as much as digits as its factorization.

18113135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033.

The product of its digits is 360, while the sum is 23.

The square root of 18113135 is about 4255.9528897769. The cubic root of 18113135 is about 262.6220626575.

The spelling of 18113135 in words is "eighteen million, one hundred thirteen thousand, one hundred thirty-five".