20334133 has 4 divisors (see below), whose sum is σ = 21035340. Its totient is φ = 19632928.

The previous prime is 20334121. The next prime is 20334137. The reversal of 20334133 is 33143302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14607684 + 5726449 = 3822^2 + 2393^2 .

It is a cyclic number.

It is not a de Polignac number, because 20334133 - 2⁵ = 20334101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20334133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350560 + ... + 350617.

It is an arithmetic number, because the mean of its divisors is an integer number (5258835).

Almost surely, 2^20334133 is an apocalyptic number.

It is an amenable number.

20334133 is a deficient number, since it is larger than the sum of its proper divisors (701207).

20334133 is an equidigital number, since it uses as much as digits as its factorization.

20334133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701206.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 20334133 is about 4509.3384215426. The cubic root of 20334133 is about 272.9450483572.

Adding to 20334133 its reverse (33143302), we get a palindrome (53477435).

It can be divided in two parts, 20 and 334133, that added together give a triangular number (334153 = T₈₁₇).

The spelling of 20334133 in words is "twenty million, three hundred thirty-four thousand, one hundred thirty-three".