18105026 has 8 divisors (see below), whose sum is σ = 27820044. Its totient is φ = 8831680.

The previous prime is 18105013. The next prime is 18105041. The reversal of 18105026 is 62050181.

It is a Cunningham number, because it is equal to 4255²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 18105025 + 1 = 4255^2 + 1^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 18104992 and 18105010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110315 + ... + 110478.

Almost surely, 2^18105026 is an apocalyptic number.

18105026 is a deficient number, since it is larger than the sum of its proper divisors (9715018).

18105026 is a wasteful number, since it uses less digits than its factorization.

18105026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220836.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 18105026 is about 4255.0001175088. Note that the first 3 decimals coincide. The cubic root of 18105026 is about 262.5828660527.

The spelling of 18105026 in words is "eighteen million, one hundred five thousand, twenty-six".