18449135 has 8 divisors (see below), whose sum is σ = 22173360. Its totient is φ = 14736384.

The previous prime is 18449129. The next prime is 18449143. The reversal of 18449135 is 53194481.

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 18449135 - 2⁸ = 18448879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18449095 and 18449104.

It is a congruent number.

It is an unprimeable number.

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, 1199 + ... + 6191.

It is an arithmetic number, because the mean of its divisors is an integer number (2771670).

Almost surely, 2^18449135 is an apocalyptic number.

18449135 is a deficient number, since it is larger than the sum of its proper divisors (3724225).

18449135 is an equidigital number, since it uses as much as digits as its factorization.

18449135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5737.

The product of its digits is 17280, while the sum is 35.

The square root of 18449135 is about 4295.2456274351. The cubic root of 18449135 is about 264.2360100621.

The spelling of 18449135 in words is "eighteen million, four hundred forty-nine thousand, one hundred thirty-five".