18041005 has 8 divisors (see below), whose sum is σ = 21680352. Its totient is φ = 14412048.

The previous prime is 18040973. The next prime is 18041033. The reversal of 18041005 is 50014081.

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

It is a cyclic number.

It is not a de Polignac number, because 18041005 - 2⁵ = 18040973 is a prime.

It is a super-2 number, since 2×18041005² = 650955722820050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

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, 1954 + ... + 6316.

It is an arithmetic number, because the mean of its divisors is an integer number (2710044).

Almost surely, 2^18041005 is an apocalyptic number.

It is an amenable number.

18041005 is a deficient number, since it is larger than the sum of its proper divisors (3639347).

18041005 is an equidigital number, since it uses as much as digits as its factorization.

18041005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 18041005 is about 4247.4704236757. The cubic root of 18041005 is about 262.2729949790.

Adding to 18041005 its reverse (50014081), we get a palindrome (68055086).

It can be divided in two parts, 1804 and 1005, that added together give a square (2809 = 53²).

The spelling of 18041005 in words is "eighteen million, forty-one thousand, five".