11820135 has 8 divisors (see below), whose sum is σ = 18912240. Its totient is φ = 6304064.

The previous prime is 11820121. The next prime is 11820161. The reversal of 11820135 is 53102811.

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 11820135 - 2⁵ = 11820103 is a prime.

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, 393990 + ... + 394019.

It is an arithmetic number, because the mean of its divisors is an integer number (2364030).

Almost surely, 2^11820135 is an apocalyptic number.

11820135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11820135 is a deficient number, since it is larger than the sum of its proper divisors (7092105).

11820135 is an equidigital number, since it uses as much as digits as its factorization.

11820135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788017.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 11820135 is about 3438.0423208564. The cubic root of 11820135 is about 227.7932297447.

Adding to 11820135 its reverse (53102811), we get a palindrome (64922946).

The spelling of 11820135 in words is "eleven million, eight hundred twenty thousand, one hundred thirty-five".