18060019 has 4 divisors (see below), whose sum is σ = 18071296. Its totient is φ = 18048744.

The previous prime is 18060017. The next prime is 18060023. The reversal of 18060019 is 91006081.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 91006081 = 431 ⋅211151.

It is a cyclic number.

It is not a de Polignac number, because 18060019 - 2¹ = 18060017 is a prime.

It is a super-2 number, since 2×18060019² = 652328572560722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18059975 and 18060002.

It is not an unprimeable number, because it can be changed into a prime (18060017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2739 + ... + 6604.

It is an arithmetic number, because the mean of its divisors is an integer number (4517824).

Almost surely, 2^18060019 is an apocalyptic number.

18060019 is a deficient number, since it is larger than the sum of its proper divisors (11277).

18060019 is an equidigital number, since it uses as much as digits as its factorization.

18060019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11276.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 18060019 is about 4249.7081076234. The cubic root of 18060019 is about 262.3651019655.

The spelling of 18060019 in words is "eighteen million, sixty thousand, nineteen".