18135355 has 8 divisors (see below), whose sum is σ = 24871392. Its totient is φ = 12435648.

The previous prime is 18135347. The next prime is 18135371. The reversal of 18135355 is 55353181.

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 18135355 - 2³ = 18135347 is a prime.

It is a super-2 number, since 2×18135355² = 657782201952050, which contains 22 as substring.

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, 259042 + ... + 259111.

It is an arithmetic number, because the mean of its divisors is an integer number (3108924).

Almost surely, 2^18135355 is an apocalyptic number.

18135355 is a deficient number, since it is larger than the sum of its proper divisors (6736037).

18135355 is an equidigital number, since it uses as much as digits as its factorization.

18135355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518165.

The product of its digits is 9000, while the sum is 31.

The square root of 18135355 is about 4258.5625509085. The cubic root of 18135355 is about 262.7294079196.

The spelling of 18135355 in words is "eighteen million, one hundred thirty-five thousand, three hundred fifty-five".