18034123 has 4 divisors (see below), whose sum is σ = 18042688. Its totient is φ = 18025560.

The previous prime is 18034103. The next prime is 18034129. The reversal of 18034123 is 32143081.

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: 32143081 = 157 ⋅204733.

It is a cyclic number.

It is not a de Polignac number, because 18034123 - 2⁹ = 18033611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18034094 and 18034103.

It is not an unprimeable number, because it can be changed into a prime (18034129) 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, 1318 + ... + 6148.

It is an arithmetic number, because the mean of its divisors is an integer number (4510672).

Almost surely, 2^18034123 is an apocalyptic number.

18034123 is a deficient number, since it is larger than the sum of its proper divisors (8565).

18034123 is an equidigital number, since it uses as much as digits as its factorization.

18034123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8564.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 18034123 is about 4246.6602171589. The cubic root of 18034123 is about 262.2396414729.

The spelling of 18034123 in words is "eighteen million, thirty-four thousand, one hundred twenty-three".