18137055 has 16 divisors (see below), whose sum is σ = 29288160. Its totient is φ = 9583488.

The previous prime is 18137051. The next prime is 18137083. The reversal of 18137055 is 55073181.

It is not a de Polignac number, because 18137055 - 2² = 18137051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18137051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3912 + ... + 7181.

It is an arithmetic number, because the mean of its divisors is an integer number (1830510).

Almost surely, 2^18137055 is an apocalyptic number.

18137055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18137055 is a deficient number, since it is larger than the sum of its proper divisors (11151105).

18137055 is a wasteful number, since it uses less digits than its factorization.

18137055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11210.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 18137055 is about 4258.7621440977. The cubic root of 18137055 is about 262.7376170419.

The spelling of 18137055 in words is "eighteen million, one hundred thirty-seven thousand, fifty-five".