18041115 has 8 divisors (see below), whose sum is σ = 28865808. Its totient is φ = 9621920.

The previous prime is 18041099. The next prime is 18041159. The reversal of 18041115 is 51114081.

It is a happy number.

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

It is not a de Polignac number, because 18041115 - 2⁴ = 18041099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18041091 and 18041100.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 601356 + ... + 601385.

It is an arithmetic number, because the mean of its divisors is an integer number (3608226).

Almost surely, 2^18041115 is an apocalyptic number.

18041115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18041115 is a deficient number, since it is larger than the sum of its proper divisors (10824693).

18041115 is a wasteful number, since it uses less digits than its factorization.

18041115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202749.

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 18041115 is about 4247.4833725396. The cubic root of 18041115 is about 262.2735280234.

Adding to 18041115 its reverse (51114081), we get a palindrome (69155196).

The spelling of 18041115 in words is "eighteen million, forty-one thousand, one hundred fifteen".