18134423 has 8 divisors (see below), whose sum is σ = 18639936. Its totient is φ = 17632000.

The previous prime is 18134399. The next prime is 18134429. The reversal of 18134423 is 32443181.

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

It is a cyclic number.

It is not a de Polignac number, because 18134423 - 2¹⁸ = 17872279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18134392 and 18134401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18134429) 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 7 ways as a sum of consecutive naturals, for example, 15890 + ... + 16992.

It is an arithmetic number, because the mean of its divisors is an integer number (2329992).

Almost surely, 2^18134423 is an apocalyptic number.

18134423 is a deficient number, since it is larger than the sum of its proper divisors (505513).

18134423 is a wasteful number, since it uses less digits than its factorization.

18134423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545.

The product of its digits is 2304, while the sum is 26.

The square root of 18134423 is about 4258.4531229074. The cubic root of 18134423 is about 262.7249071713.

The spelling of 18134423 in words is "eighteen million, one hundred thirty-four thousand, four hundred twenty-three".