18045029 has 4 divisors (see below), whose sum is σ = 18055776. Its totient is φ = 18034284.

The previous prime is 18045019. The next prime is 18045031. The reversal of 18045029 is 92054081.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92054081 = 7 ⋅13150583.

It is a cyclic number.

It is not a de Polignac number, because 18045029 - 2²⁰ = 16996453 is a prime.

It is a super-3 number, since 3×18045029³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a pancake number, because a pancake can be divided into 18045029 parts by 6007 straight cuts.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18044992 and 18045010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18045019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2249 + ... + 6414.

It is an arithmetic number, because the mean of its divisors is an integer number (4513944).

Almost surely, 2^18045029 is an apocalyptic number.

It is an amenable number.

18045029 is a deficient number, since it is larger than the sum of its proper divisors (10747).

18045029 is an equidigital number, since it uses as much as digits as its factorization.

18045029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10746.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 18045029 is about 4247.9440909692. The cubic root of 18045029 is about 262.2924933029.

The spelling of 18045029 in words is "eighteen million, forty-five thousand, twenty-nine".