18010033 has 4 divisors (see below), whose sum is σ = 18120688. Its totient is φ = 17899380.

The previous prime is 18010019. The next prime is 18010037. The reversal of 18010033 is 33001081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18010033 - 2⁵ = 18010001 is a prime.

It is a super-2 number, since 2×18010033² = 648722577322178, 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 = 18009989 and 18010016.

It is not an unprimeable number, because it can be changed into a prime (18010037) 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, 55083 + ... + 55408.

It is an arithmetic number, because the mean of its divisors is an integer number (4530172).

Almost surely, 2^18010033 is an apocalyptic number.

It is an amenable number.

18010033 is a deficient number, since it is larger than the sum of its proper divisors (110655).

18010033 is a wasteful number, since it uses less digits than its factorization.

18010033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110654.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 18010033 is about 4243.8229227903. The cubic root of 18010033 is about 262.1228227813.

The spelling of 18010033 in words is "eighteen million, ten thousand, thirty-three".