18113355 has 32 divisors (see below), whose sum is σ = 34681920. Its totient is φ = 8916480.

The previous prime is 18113353. The next prime is 18113411. The reversal of 18113355 is 55331181.

It is not a de Polignac number, because 18113355 - 2¹ = 18113353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18113353) 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 31 ways as a sum of consecutive naturals, for example, 3406 + ... + 6915.

It is an arithmetic number, because the mean of its divisors is an integer number (1083810).

Almost surely, 2^18113355 is an apocalyptic number.

18113355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18113355 is a deficient number, since it is larger than the sum of its proper divisors (16568565).

18113355 is a wasteful number, since it uses less digits than its factorization.

18113355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10348 (or 10342 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 18113355 is about 4255.9787358491. The cubic root of 18113355 is about 262.6231259121.

The spelling of 18113355 in words is "eighteen million, one hundred thirteen thousand, three hundred fifty-five".