33680135 has 4 divisors (see below), whose sum is σ = 40416168. Its totient is φ = 26944104.

The previous prime is 33680131. The next prime is 33680161. The reversal of 33680135 is 53108633.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33680135 - 2² = 33680131 is a prime.

It is a super-2 number, since 2×33680135² = 2268702987236450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33680098 and 33680107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33680131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368009 + ... + 3368018.

It is an arithmetic number, because the mean of its divisors is an integer number (10104042).

Almost surely, 2^33680135 is an apocalyptic number.

33680135 is a deficient number, since it is larger than the sum of its proper divisors (6736033).

33680135 is an equidigital number, since it uses as much as digits as its factorization.

33680135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736032.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 33680135 is about 5803.4588824252. The cubic root of 33680135 is about 322.9420574878.

Adding to 33680135 its reverse (53108633), we get a palindrome (86788768).

The spelling of 33680135 in words is "thirty-three million, six hundred eighty thousand, one hundred thirty-five".