18126329 has 8 divisors (see below), whose sum is σ = 19676160. Its totient is φ = 16598736.

The previous prime is 18126319. The next prime is 18126331. The reversal of 18126329 is 92362181.

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 18126329 - 2¹⁶ = 18060793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18126295 and 18126304.

It is not an unprimeable number, because it can be changed into a prime (18126319) 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, 3839 + ... + 7140.

It is an arithmetic number, because the mean of its divisors is an integer number (2459520).

Almost surely, 2^18126329 is an apocalyptic number.

It is an amenable number.

18126329 is a deficient number, since it is larger than the sum of its proper divisors (1549831).

18126329 is a wasteful number, since it uses less digits than its factorization.

18126329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119.

The product of its digits is 5184, while the sum is 32.

The square root of 18126329 is about 4257.5026717549. The cubic root of 18126329 is about 262.6858137144.

The spelling of 18126329 in words is "eighteen million, one hundred twenty-six thousand, three hundred twenty-nine".