18000035 has 4 divisors (see below), whose sum is σ = 21600048. Its totient is φ = 14400024.

The previous prime is 17999987. The next prime is 18000041. The reversal of 18000035 is 53000081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53000081 = 29 ⋅1827589.

It is a cyclic number.

It is not a de Polignac number, because 18000035 - 2¹⁰ = 17999011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17999977 and 18000022.

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, 1799999 + ... + 1800008.

It is an arithmetic number, because the mean of its divisors is an integer number (5400012).

Almost surely, 2^18000035 is an apocalyptic number.

18000035 is a deficient number, since it is larger than the sum of its proper divisors (3600013).

18000035 is an equidigital number, since it uses as much as digits as its factorization.

18000035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600012.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 18000035 is about 4242.6448119068. The cubic root of 18000035 is about 262.0743092836.

The spelling of 18000035 in words is "eighteen million, thirty-five", and thus it is an aban number and an uban number.