33133109 has 8 divisors (see below), whose sum is σ = 34923960. Its totient is φ = 31385536.

The previous prime is 33133063. The next prime is 33133181. The reversal of 33133109 is 90133133.

It can be written as a sum of positive squares in 4 ways, for example, as 2640625 + 30492484 = 1625^2 + 5522^2 .

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 33133109 - 2¹² = 33129013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33133609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9242 + ... + 12315.

It is an arithmetic number, because the mean of its divisors is an integer number (4365495).

Almost surely, 2^33133109 is an apocalyptic number.

It is an amenable number.

33133109 is a deficient number, since it is larger than the sum of its proper divisors (1790851).

33133109 is a wasteful number, since it uses less digits than its factorization.

33133109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21639.

The product of its (nonzero) digits is 729, while the sum is 23.

The square root of 33133109 is about 5756.1366384060. The cubic root of 33133109 is about 321.1841187758.

The spelling of 33133109 in words is "thirty-three million, one hundred thirty-three thousand, one hundred nine".