18053115 has 16 divisors (see below), whose sum is σ = 29376000. Its totient is φ = 9464672.

The previous prime is 18053089. The next prime is 18053117. The reversal of 18053115 is 51135081.

It is a cyclic number.

It is not a de Polignac number, because 18053115 - 2⁷ = 18052987 is a prime.

It is a super-2 number, since 2×18053115² = 651829922406450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18053117) 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, 9315 + ... + 11084.

It is an arithmetic number, because the mean of its divisors is an integer number (1836000).

Almost surely, 2^18053115 is an apocalyptic number.

18053115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18053115 is a deficient number, since it is larger than the sum of its proper divisors (11322885).

18053115 is a wasteful number, since it uses less digits than its factorization.

18053115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20466.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 18053115 is about 4248.8957388950. The cubic root of 18053115 is about 262.3316653169.

Adding to 18053115 its reverse (51135081), we get a palindrome (69188196).

The spelling of 18053115 in words is "eighteen million, fifty-three thousand, one hundred fifteen".